CVE-2017-5645 — Deserialization of Untrusted Data in Apache Software Foundation Log4j
In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- Public exploit/PoC (nuclei)+4
- EPSS 89.8% (30-day exploitation probability)+15
- Technical severity (critical)+10
- Automatable exploitation (SSVC)+3
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented patch — www.oracle.com (NIST National Vulnerability Database)
- Documented patch — www.oracle.com (NIST National Vulnerability Database)
- Documented patch — www.oracle.com (NIST National Vulnerability Database)
- Documented patch — www.oracle.com (NIST National Vulnerability Database)
- Documented patch — www.oracle.com (NIST National Vulnerability Database)
- Documented patch — www.oracle.com (NIST National Vulnerability Database)
- Documented patch — www.oracle.com (NIST National Vulnerability Database)
- Documented patch — www.oracle.com (NIST National Vulnerability Database)
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Apache Software Foundation Log4j, Netapp Oncommand Api Services, Netapp Oncommand Insight…).
- The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
- Apply the fixed version or the patch documented under Remediation.
- EPSS ahead of 100% of scored CVEs: prioritize it in the patch queue.
- Search available logs for exploit probes matching the vulnerability class (insecure deserialization), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Apache Software Foundation | Log4j | ≥ 2.0 and < 2.8.2 | Vulnerable | NIST National Vulnerability Database |
| Apache Software Foundation | Log4j | version All versions between 2.0-alpha1 and 2.8.1 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Netapp | Oncommand Api Services | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Oncommand Insight | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Oncommand Workflow Automation | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Service Level Manager | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Snapcenter | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Storage Automation Store | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Oracle | Api Gateway | version 11.1.2.4.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Application Testing Suite | version 13.3.0.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Autovue Vuelink Integration | version 21.0.0version 21.0.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Banking Platform | version 2.6.0version 2.6.1version 2.6.2 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Bi Publisher | version 11.1.1.7.0version 11.1.1.9.0version 12.2.1.3.0version 12.2.1.4.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Communications Converged Application Server - Service Controller | version 6.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Communications Instant Messaging Server | version 10.0.1.3.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Communications Interactive Session Recorder | ≥ 6.0 and ≤ 6.2 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Communications Messaging Server | < 8.0.2 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Communications Network Integrity | ≥ 7.3.2 and ≤ 7.3.6 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Communications Online Mediation Controller | version 6.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Communications Pricing Design Center | version 11.1version 12.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Communications Service Broker | version 6.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Communications Webrtc Session Controller | < 7.2 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Configuration Manager | version 12.1.2.0.2version 12.1.2.0.5 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Endeca Information Discovery Studio | version 3.2.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Enterprise Data Quality | version 12.2.1.3.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Enterprise Manager Base Platform | version 12.1.0.5version 13.2.0.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Enterprise Manager For Fusion Middleware | version 12.1.0.5version 13.2.0.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Enterprise Manager For Mysql Database | ≤ 13.2.2.0.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Enterprise Manager For Oracle Database | version 12.1.0.8version 13.2.2 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Enterprise Manager For Peoplesoft | version 13.1.1.1version 13.2.1.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Financial Services Analytical Applications Infrastructure | ≥ 7.3.3.0.0 and ≤ 7.3.3.0.2≥ 8.0.0.0.0 and ≤ 8.0.7.0.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Financial Services Behavior Detection Platform | ≥ 8.0.0.0.0 and ≤ 8.0.4.0.0version 6.1.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Financial Services Hedge Management And Ifrs Valuations | version 8.0.4version 8.0.5 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Financial Services Lending And Leasing | ≥ 14.1.0 and ≤ 14.8.0version 12.5.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Financial Services Loan Loss Forecasting And Provisioning | version 8.0.4version 8.0.5 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Financial Services Profitability Management | ≥ 8.0.0.0.0 and ≤ 8.0.7.0.0version 6.1.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Financial Services Regulatory Reporting With Agilereporter | version 8.0.9.2.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Flexcube Investor Servicing | version 12.0.4version 12.1.0version 12.3.0version 12.4.0version 14.0.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Fusion Middleware Mapviewer | version 12.2.1.2version 12.2.1.3 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Goldengate | version 12.3.2.1.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Goldengate Application Adapters | version 12.3.2.1.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Identity Analytics | version 11.1.1.5.8 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Identity Management Suite | version 11.1.2.3.0version 12.2.1.3.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Identity Manager Connector | version 9.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | In-memory Performance-driven Planning | version 12.1version 12.2 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Instantis Enterprisetrack | ≥ 17.1 and ≤ 17.3 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Insurance Calculation Engine | version 10.1.1version 10.2.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Insurance Policy Administration | version 10.0version 10.2version 11.0version 10.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Insurance Rules Palette | version 10.0version 10.1version 10.2version 11.0version 11.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Jd Edwards Enterpriseone Tools | version 4.0.1.0version 9.2 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Jdeveloper | version 12.1.3.0.0version 12.2.1.3.0version 11.1.1.9.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Mysql Enterprise Monitor | ≥ 3.4.0.0 and ≤ 3.4.7.4297≥ 4.0.0.0 and ≤ 4.0.4.5235≥ 8.0.0.0.0 and ≤ 8.0.0.8131 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Peoplesoft Enterprise Fin Install | version 9.2 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Policy Automation |
version 12.2.2version 12.2.10version 12.2.9version 12.2.8version 12.2.7version 12.2.6version 12.2.5version 12.2.4 and 6 moreversion 12.2.3version 12.2.1version 12.2.0version 12.1.1version 12.1.0version 10.4.7 |
Vulnerable | NIST National Vulnerability Database |
| Oracle | Policy Automation Connector For Siebel | version 10.4.6 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Policy Automation For Mobile Devices |
version 12.1.1version 12.2.10version 12.2.9version 12.2.8version 12.2.7version 12.2.6version 12.2.5version 12.2.3 and 6 moreversion 12.2.2version 12.2.1version 12.2.0version 12.1.0version 10.4.7version 12.2.4 |
Vulnerable | NIST National Vulnerability Database |
| Oracle | Primavera Gateway | ≥ 16.2.0 and ≤ 16.2.11≥ 17.12.0 and ≤ 17.12.7 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Rapid Planning | version 12.1version 12.2 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Retail Advanced Inventory Planning | version 14.0version 15.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Retail Clearance Optimization Engine | version 14.0.5 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Retail Extract Transform And Load | version 13.0version 13.1version 13.2version 19.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Retail Integration Bus | version 14.0.0version 14.1.0version 15.0version 16.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Retail Open Commerce Platform | version 5.3.0version 6.0.1version 6.0.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Retail Predictive Application Server | version 15.0.3 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Retail Service Backbone | version 14.1version 15.0version 16.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Siebel Ui Framework | version 18.7version 18.8version 18.9 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Soa Suite | version 12.1.3.0.0version 12.2.1.3.0version 12.2.2.0.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Tape Library Acsls | version 8.4 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Timesten In-memory Database | version 11.2.2.8.49 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Utilities Advanced Spatial And Operational Analytics | version 2.7.0.1 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Utilities Work And Asset Management | version 1.9.1.2.12 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Weblogic Server | version 10.3.6.0.0version 12.1.3.0.0version 12.2.1.3.0version 12.2.1.4.0version 14.1.1.0.0 | Vulnerable | NIST National Vulnerability Database |
| Red Hat | Enterprise Linux | version 6.0version 6.7version 7.0version 7.3version 7.4version 7.5version 7.6 | Vulnerable | NIST National Vulnerability Database |
| Red Hat | Enterprise Linux Desktop | version 7.0 | Vulnerable | NIST National Vulnerability Database |
| Red Hat | Enterprise Linux Server | version 7.0 | Vulnerable | NIST National Vulnerability Database |
| Red Hat | Enterprise Linux Server Aus | version 7.4version 7.6 | Vulnerable | NIST National Vulnerability Database |
| Red Hat | Enterprise Linux Server Eus | version 7.4version 7.5version 7.6 | Vulnerable | NIST National Vulnerability Database |
| Red Hat | Enterprise Linux Server Tus | version 7.4version 7.6 | Vulnerable | NIST National Vulnerability Database |
| Red Hat | Enterprise Linux Workstation | version 7.0 | Vulnerable | NIST National Vulnerability Database |
| Red Hat | Fuse | version 1.0 | Vulnerable | NIST National Vulnerability Database |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 9.8 | CVSS 3.1 | Critical | 3.9 | 5.9 | nvd@nist.gov via NIST National Vulnerability Database |
| 7.5 | CVSS 2.0 | High | 10.0 | 6.4 | nvd@nist.gov via NIST National Vulnerability Database |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
Public exploits, PoCs and detection templates
Public code that demonstrates or tests the flaw raises the odds of mass exploitation — and Nuclei templates help find vulnerable assets in your environment.
Warning: public PoCs are sometimes disguised malware. Use them only for authorized testing in an isolated environment. This portal does not host exploit code — it only points to the sources.
EPSS over time FIRST
Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 89.79%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
- Monitor serialized objects in requests and unexpected processes spawned by the runtime.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · apache software foundation/apache log4j
- SSVC assessment updated
- Record published
- Fix documented
- CVSS changed · 9.8
- Source status changed · → Modified
- Record created in this database
- 2017
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 13, 2026 – Oct 13, 2026
References
82 on the record
- issues.apache.org/jira/browse/LOG4J2-1863
- www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- access.redhat.com/errata/RHSA-2017:2635
- lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0
- access.redhat.com/errata/RHSA-2017:1801
- security.netapp.com/advisory/ntap-20181107-0002/
- www.oracle.com/security-alerts/cpuapr2020.html
- access.redhat.com/errata/RHSA-2017:2637
- www.oracle.com/security-alerts/cpuApr2021.html
- lists.apache.org/thread.html/84cc4266238e057b95eb95dfd8b29d46a2592e7672c12c92f68b2917%
- www.oracle.com/security-alerts/cpujan2021.html
- www.securitytracker.com/id/1041294
- lists.apache.org/thread.html/rf1bbc0ea4a9f014cf94df9a12a6477d24a27f52741dbc87f2fd52ff2
- access.redhat.com/errata/RHSA-2017:2811
- www.oracle.com/security-alerts/cpujan2020.html
- www.oracle.com/security-alerts/cpujul2020.html
- lists.apache.org/thread.html/r746fbc3fc13aee292ae6851f7a5080f592fa3a67b983c6887cdb1fc5
- access.redhat.com/errata/RHSA-2017:3400
- lists.apache.org/thread.html/rb1b29aee737e1c37fe1d48528cb0febac4f5deed51f5412e6fdfe2bf
- access.redhat.com/errata/RHSA-2017:2636
- lists.apache.org/thread.html/rbfa7a0742be4981a3f9356a23d0e1a5f2e1eabde32a1a3d8e41420f8
- lists.apache.org/thread.html/r681b4432d0605f327b68b9f8a42662993e699d04614de4851c35ffd1
- www.securityfocus.com/bid/97702
- www.oracle.com/security-alerts/cpuoct2021.html
- lists.apache.org/thread.html/r94b5aae09c4bcff5d06cf641be17b00bd83ba7e10cad737bf16a1b8f
- lists.apache.org/thread.html/ra38785cfc0e7f17f8e24bebf775dd032c033fadcaea29e5bc9fffc60
- lists.apache.org/thread.html/rd5dbeee4808c0f2b9b51479b50de3cc6adb1072c332a200d9107f13e
- lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%
- lists.apache.org/thread.html/44491fb9cc19acc901f7cff34acb7376619f15638439416e3e14761c%
- access.redhat.com/errata/RHSA-2017:2638
- access.redhat.com/errata/RHSA-2017:1417
- lists.apache.org/thread.html/e8fb7d76a244ee997ba4b217d6171227f7c2521af8c7c5b16cba27bc%
- access.redhat.com/errata/RHSA-2017:2809
- lists.apache.org/thread.html/r0831e2e52a390758ce39a6193f82c11c295175adce6e6307de28c287
- lists.apache.org/thread.html/277b4b5c2b0e06a825ccec565fa65bd671f35a4d58e3e2ec5d0618e1%
- lists.apache.org/thread.html/r3d666e4e8905157f3c046d31398b04f2bfd4519e31f266de108c6919
- lists.apache.org/thread.html/r3784834e80df2f284577a5596340fb84346c91a2dea6a073e65e3397
- security.netapp.com/advisory/ntap-20180726-0002/
- access.redhat.com/errata/RHSA-2017:3244
- lists.apache.org/thread.html/r4b25538be50126194cc646836c718b1a4d8f71bd9c912af5b59134ad
- access.redhat.com/errata/RHSA-2019:1545
- access.redhat.com/errata/RHSA-2017:2423
- lists.apache.org/thread.html/re8c21ed9dd218c217d242ffa90778428e446b082b5e1c29f567e8374
- lists.apache.org/thread.html/8ab32b4c9f1826f20add7c40be08909de9f58a89dc1de9c09953f5ac%
- lists.apache.org/thread.html/r23369fd603eb6d62d3b883a0a28d12052dcbd1d6d531137124cd7f83
- lists.apache.org/thread.html/r7bcdc710857725c311b856c0b82cee6207178af5dcde1bd43d289826
- access.redhat.com/errata/RHSA-2017:1802
- lists.apache.org/thread.html/rf2567488cfc9212b42e34c6393cfa1c14e30e4838b98dda84d71041f
- lists.apache.org/thread.html/r3a85514a518f3080ab1fc2652cfe122c2ccf67cfb32356acb1b08fe8
- lists.apache.org/thread.html/rc1eaed7f7d774d5d02f66e49baced31e04827a1293d61a70bd003ca7
- access.redhat.com/errata/RHSA-2017:2810
- lists.apache.org/thread.html/rcbb79023a7c8494cb389cd3d95420fa9e0d531ece0b780b8c1f99422
- www.openwall.com/lists/oss-security/2019/12/19/2
- lists.apache.org/thread.html/ra9a682bc0a8dff1c5cefdef31c7c25f096d9121207cf2d74e2fc563d
- lists.apache.org/thread.html/rdec0d8ac1f03e6905b0de2df1d5fcdb98b94556e4f6cccf7519fdb26
- lists.apache.org/thread.html/rca24a281000fb681d7e26e5c031a21eb4b0593a7735f781b53dae4e2
- lists.apache.org/thread.html/r2ce8d26154bea939536e6cf27ed02d3192bf5c5d04df885a80fe89b3
- lists.apache.org/thread.html/r18f1c010b554a3a2d761e8ffffd8674fd4747bcbcf16c643d708318c
- lists.apache.org/thread.html/eea03d504b36e8f870e8321d908e1def1addda16adda04327fe7c125%
- access.redhat.com/errata/RHSA-2017:2633
- www.securitytracker.com/id/1040200
- lists.apache.org/thread.html/479471e6debd608c837b9815b76eab24676657d4444fcfd5ef96d6e6%
- lists.apache.org/thread.html/r9d5c1b558a15d374bd5abd2d3ae3ca7e50e796a0efdcf91e9c5b4cdd
- lists.apache.org/thread.html/6114ce566200d76e3cc45c521a62c2c5a4eac15738248f58a99f622c%
- lists.apache.org/thread.html/raedd12dc24412b3780432bf202a2618a21a727788543e5337a458ead
- lists.apache.org/thread.html/0dcca05274d20ef2d72584edcf8c917bbb13dbbd7eb35cae909d02e9%
- access.redhat.com/errata/RHSA-2017:3399
- access.redhat.com/errata/RHSA-2017:2808
- www.oracle.com/security-alerts/cpujan2022.html
- access.redhat.com/errata/RHSA-2017:2889
- lists.apache.org/thread.html/rdbd579dc223f06af826d7de340218ee2f80d8b43fa7e4decb2a63f44
- www.oracle.com/security-alerts/cpuoct2020.html
- lists.apache.org/thread.html/r61590890edcc64140e0c606954b29a063c3d08a2b41d447256d51a78
- access.redhat.com/errata/RHSA-2017:2888
- lists.apache.org/thread.html/r2ff63f210842a3c5e42f03a35d8f3a345134d073c80a04077341c211
Elsewhere on this site
Related CVEs (same products)
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- High CVE-2026-104048 Sssd: sssd: authorization bypass via cross-domain username collision in hbac evaluation 9d
- Medium CVE-2026-104047 Sssd: sssd: information disclosure via query injection in entra id lookups 9d
- High CVE-2026-102558 Libsoup: libsoup: heap buffer overflow during websocket receive-buffer growth 16d
- High CVE-2026-102555 Libsoup: libsoup: heap buffer overflow via uninitialized length in data-uri base64 decoding 16d
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2017-5645 is "Deserialization of Untrusted Data in Apache Software Foundation Log4j", rated Critical. It affects Log4j (Apache Software Foundation); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 9.8 describes technical severity. EPSS 89.79% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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