CVE Intelligence
Critical Insecure deserialization

CVE-2019-16335 — Deserialization of Untrusted Data in Debian Debian Linux

A Polymorphic Typing issue was discovered in FasterXML jackson-databind before 2.9.10. It is related to com.zaxxer.hikari.HikariDataSource. This is a different vulnerability than CVE-2019-14540.

Published Sep 15, 2019 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · 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 5% (30-day exploitation probability)+14
  • 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
4.96%
ahead of 92% of scored CVEs · Oct 14, 2026
Affects
Debian
Debian Linux and 16 more
CVSS base
9.8
Critical · 1 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 — github.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.

  1. Identify exposed assets running the affected vendor/product/version combinations (Debian Debian Linux, Fasterxml Jackson-databind, Fedoraproject Fedora…).
  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 92% of scored CVEs: prioritize it in the patch queue.
  5. 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.

VendorProductVersionsStatusSource
Debian Debian Linux version 8.0version 9.0version 10.0 Vulnerable NIST National Vulnerability Database
Fasterxml Jackson-databind ≥ 2.0.0 and < 2.6.7.3≥ 2.7.0 and < 2.8.11.5≥ 2.9.0 and < 2.9.10 Vulnerable NIST National Vulnerability Database
Fedoraproject Fedora version 31version 30 Vulnerable NIST National Vulnerability Database
Netapp Oncommand Api Services 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 Steelstore Cloud Integrated Storage versions not specified by the source Vulnerable NIST National Vulnerability Database
Oracle Banking Platform version 2.6.1version 2.7.0version 2.7.1version 2.6.0version 2.5.0version 2.4.1version 2.4.0 Vulnerable NIST National Vulnerability Database
Oracle Customer Management And Segmentation Foundation version 18.0 Vulnerable NIST National Vulnerability Database
Oracle Financial Services Analytical Applications Infrastructure ≥ 8.0.2 and ≤ 8.0.8 Vulnerable NIST National Vulnerability Database
Oracle Global Lifecycle Management Opatch ≥ 13.9.4.0.0 and < 13.9.4.2.1≥ 12.2.0.1.0 and < 12.2.0.1.19< 11.2.0.3.23 Vulnerable NIST National Vulnerability Database
Oracle Goldengate Application Adapters version 19.1.0.0.0 Vulnerable NIST National Vulnerability Database
Oracle Goldengate Stream Analytics < 19.1.0.0.1 Vulnerable NIST National Vulnerability Database
Oracle Primavera Gateway version 18.8.0version 16.2version 16.1version 15.2≥ 17.7 and ≤ 17.12 Vulnerable NIST National Vulnerability Database
Oracle Retail Customer Management And Segmentation Foundation version 17.0 Vulnerable NIST National Vulnerability Database
Oracle Retail Xstore Point Of Service version 17.0version 18.0version 16.0version 15.0version 7.1 Vulnerable NIST National Vulnerability Database
Oracle Weblogic Server version 12.2.1.3.0 Vulnerable NIST National Vulnerability Database
Red Hat Jboss Enterprise Application Platform version 7.2version 7.3 Vulnerable NIST National Vulnerability Database

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 3.1 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.

CWE-502 · Deserialization of Untrusted Data

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 4.96%

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.
web/proxy/WAF logsnetwork IDS/IPSendpoint telemetry (EDR)application logs

Timeline

What happened to this CVE, newest first.

  • 2026
  • SSVC assessment updated
    Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
  • Record published
    Oct 13, 2026
  • Fix documented
    Oct 13, 2026 · NIST National Vulnerability Database
  • CVSS changed · 9.8
    Oct 13, 2026 · NIST National Vulnerability Database
  • Source status changed · → Modified
    Oct 13, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 13, 2026 · NIST National Vulnerability Database
  • 2019
  • CVE published
    Sep 15, 2019 · mitre

Source activity

Repeated readings are counted rather than listed.

  • 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

32 on the record

Elsewhere on this site

Debian
every CVE for this vendor
Insecure deserialization
same class
CWE-502
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-83038 Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component:... Sep 15, 2026
  • CVE-2026-83021 Improper Authentication in Oracle Weblogic Server Sep 15, 2026
  • CVE-2026-70748 Improper Authentication in Oracle Weblogic Server Sep 15, 2026
  • CVE-2026-70757 Improper Authentication in Oracle Weblogic Server Sep 15, 2026
  • CVE-2026-70756 Improper Authentication in Oracle Weblogic Server Sep 15, 2026
  • CVE-2026-60977 Improper Access Control in Oracle Weblogic Server Aug 18, 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-2019-16335 is "Deserialization of Untrusted Data in Debian Debian Linux", 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 4.96% 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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