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CVE-2016-9299 Jenkins

Affected softwareJenkins
Severity9.8 Critical CVSS 3.0 2 scores
Fixed in2.32, 2.19.3
WeaknessCWE-90
Published12 Jan 2017
Updated17 Jun 2026

Description

The remoting module in Jenkins before 2.32 and LTS before 2.19.3 allows remote attackers to execute arbitrary code via a crafted serialized Java object, which triggers an LDAP query to a third-party server.

Exploitation status

Exploited

Real-world exploitation reported by VulnCheck KEV. CISA has not confirmed it.

  • CISA KEV not listed
  • VulnCheck KEV listed Exploitation reported in the wild. 1 citation · earliest 2016-11-16.
  • CISA Vulnrichment no assessment published
  • Indexed PoC 4 indexed Published artifacts you can open, in Exploit-DB, Metasploit, Nuclei; first seen 2018-05-17.
  • EPSS 97% chance in 30 days A model's forecast, not a report of exploitation. Higher than 99.9% of all scored CVEs.

VulnCheck KEV

Exploitation evidence from VulnCheck Known Exploited Vulnerabilities (VulnCheck KEV), used under VulnCheck's community terms. View CVE-2016-9299 in VulnCheck (free account).

EvidenceSourceDetailDate
Reported exploitation jenkins.io /security/advisory/2016-11-16 2016-11-16
IndexArtifactStarsFirst seen
Exploit-DB Jenkins CLI - HTTP Java Deserialization (Metasploit) 2018-05-17
Exploit-DB Jenkins CLI - HTTP Java Deserialization (Metasploit) 2018-05-17
Nuclei Jenkins CLI - HTTP Java Deserialization
Metasploit Jenkins CLI HTTP Java Deserialization Vulnerability (excellent rank)

Waratek protection

Mitigation candidate

A kind of vulnerability Waratek's rules address, with exploit code published or exploitation reported. No rule exists and none is planned yet. The decision below says what we found to build a rule from.

  • Protection none
  • Action unverified
  • Review automated Inferred
  • Record active
Decided by The affected package being open source on Maven, so the fix can be read
Finding This CVE affects an open-source Java library published on Maven Central (Maven packages: org.jenkins-ci.main:jenkins-core), so it is squarely in ARMR's territory and the source needed to understand the defect is public. That makes it a candidate for an ARMR patch rule. No rule exists and none is scheduled: the diff between the affected and fixed versions has not been read, and a closer look may find no hook point ARMR can act on.

CVSS

9.8 CRITICAL v3.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.0 9.8 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H NVD Primary published
CVSS 2.0 7.5 none AV:N/AC:L/Au:N/C:P/I:P/A:P NVD Primary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.jenkins-ci.main:jenkins-core 2.20 2.32 unbounded
org.jenkins-ci.main:jenkins-core 0 2.19.3 unbounded

Products and versions

3 products, 5 version entries
SourceVendorProductSchemeAffected versions
nvd fedoraproject fedora generic 25
nvd jenkins jenkins generic ≤ 2.19.2 · ≤ 2.31
osv org.jenkins-ci.main jenkins-core generic < 2.19.3 · ≥ 2.20 and < 2.32

References

URLTags
https://github.com/jenkinsci/jenkins/commit/6078dd7aa097baf3402de9d5279f6053926a1ea7 WEB
https://github.com/jenkinsci/jenkins/commit/ce8a2d51a5ee9ca12d0a75659b06161888e0a1bf WEB
https://github.com/jenkinsci/jenkins/commit/d84d9a2ad3825f316f805a18b3654b0803e0d7fc WEB
https://github.com/jenkinsci/jenkins/commit/f574224cae5ffde2bc4c996305c0dcf5ab135440 WEB
https://github.com/jenkinsci/jenkins/commit/fde9c42fe05ac925a904b6c09a81d497d0e6ccea WEB
https://github.com/jenkinsci/jenkins PACKAGE
https://groups.google.com/forum/#!original/jenkinsci-advisories/-fc-w9tNEJE/GRvEzWoJBgAJ WEB
https://groups.google.com/forum/#!original/jenkinsci-advisories/-fc-w9tNEJE/LZ7EOS0fBgAJ WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZW2KUKYLNLVDB7STLHLYALCUFLEGCRM6 WEB
https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-11-16 WEB

Timeline

VulnCheck KEV: earliest evidence2016-11-16Date of the oldest evidence of exploitation in VulnCheck KEV's record. VulnCheck does not publish the date it listed the CVE.
Published2017-01-12By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.