CVE Intelligence
Critical

CVE-2018-7489 — FasterXML jackson-databind allows unauthenticated remote code execution

FasterXML jackson-databind before 2.7.9.3, 2.8.x before 2.8.11.1 and 2.9.x before 2.9.5 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 deserialization flaw. This is exploitable by sending maliciously crafted JSON input to the readValue method of the ObjectMapper, bypassing a blacklist that is ineffective if the c3p0 libraries are available in the classpath.

Published Feb 26, 2018 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: mitre

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 19.8% (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.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
19.78%
ahead of 97% of scored CVEs · Oct 15, 2026
Affects
Debian
Debian Linux and 5 more
CVSS base
9.8
Critical · 2 source(s)

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.

Exploitation
None
none · proof-of-concept · active
Automatable
Yes
can an attacker script the kill-chain steps
Technical impact
Total
partial · total control of the vulnerable component

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)
  • Maven Com.fasterxml.jackson.core:jackson-databind: fixed in version 2.9.5 — github.com (GitHub Security Advisories)
  • Maven Com.fasterxml.jackson.core:jackson-databind: fixed in version 2.8.11.1 — github.com (GitHub Security Advisories)
  • Maven Com.fasterxml.jackson.core:jackson-databind: fixed in version 2.7.9.3 — github.com (GitHub Security Advisories)
  • Maven Com.fasterxml.jackson.core:jackson-databind: fixed in version 2.6.7.5 — github.com (GitHub Security Advisories)

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.

  1. Identify exposed assets running the affected vendor/product/version combinations (Debian Debian Linux, Fasterxml Jackson-databind, Oracle Communications Billing And Revenue Management…).
  2. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
  3. Apply the fixed version or the patch documented under Remediation.
  4. EPSS ahead of 97% of scored CVEs: prioritize it in the patch queue.
  5. Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Debian Debian Linux version 8.0version 9.0 Vulnerable NIST National Vulnerability Database
Fasterxml Jackson-databind < 2.7.9.3≥ 2.8.0 and < 2.8.11.1≥ 2.9.0 and < 2.9.5 Vulnerable NIST National Vulnerability Database
Oracle Communications Billing And Revenue Management version 7.5version 12.0 Vulnerable NIST National Vulnerability Database
Oracle Communications Instant Messaging Server version 10.0.1 Vulnerable NIST National Vulnerability Database
Red Hat Jboss Enterprise Application Platform version 6.4.19version 7.1.2 Vulnerable NIST National Vulnerability Database
Maven Com.fasterxml.jackson.core:jackson-databind ≥ 2.9.0 and < 2.9.5≥ 2.8.0 and ≤ 2.8.11.0≥ 2.7.0 and < 2.7.9.3< 2.6.7.5 Vulnerable GitHub Security Advisories

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
9.8 CVSS 3.0 Critical 3.9 5.9 nvd@nist.gov via NIST National Vulnerability Database
9.8 CVSS 3.0 Critical — — GitHub, Inc. via GitHub Security Advisories
7.5 CVSS 2.0 High 10.0 6.4 nvd@nist.gov via NIST National Vulnerability Database
CVSS:3.0/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.

CWE-184

Other CVEs with this weakness →

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).
web/proxy/WAF logsnetwork IDS/IPS

Timeline

What happened to this CVE, newest first.

  • 2026
  • Fix documented
    Oct 15, 2026 · GitHub Security Advisories
  • Affected products added · maven/com.fasterxml.jackson.core:jackson-databind
    Oct 15, 2026 · GitHub Security Advisories
  • SSVC assessment updated
    Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
  • Record published
    Oct 15, 2026
  • Fix documented
    Oct 15, 2026 · NIST National Vulnerability Database
  • Affected products added · fasterxml/jackson-databind, debian/debian linux, oracle/communications billing and revenue management, oracle/communicat
    Oct 15, 2026 · NIST National Vulnerability Database
  • CVSS changed · 9.8
    Oct 15, 2026 · NIST National Vulnerability Database
  • Source status changed · → Modified
    Oct 15, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 15, 2026 · Alertas do Telegram
  • 2018
  • CVE published
    Feb 26, 2018 · mitre

Source activity

Repeated readings are counted rather than listed.

  • 2× References added · Oct 15, 2026 – Oct 15, 2026
  • 1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

37 on the record

Elsewhere on this site

Debian
every CVE for this vendor
CWE-184
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-91777 jackson-databind: quadratic forward-reference completion in Collection and Map deserializers 23d
  • CVE-2026-91776 jackson-databind: unbounded growth of the type id cache in TypeDeserializerBase retains every unknown raw type ID 23d
  • CVE-2026-68497 jackson-databind: unbounded numeric parse in Duration and XMLGregorianCalendar deserialization allows CPU denial of service Sep 11, 2026
  • CVE-2026-83557 jackson-databind omits java.lang.Comparable from DefaultBaseTypeLimitingValidator's unsafe base types Sep 1, 2026
  • CVE-2026-19032 jackson-databind resolves attacker-controlled URI schemes when deserializing java.nio.file.Path Sep 1, 2026
  • CVE-2026-12996 A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote... Jul 30, 2026

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-2018-7489 is "FasterXML jackson-databind allows unauthenticated remote code execution", rated Critical. It affects Debian Linux (Debian); 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 19.78% 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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