CVE-2016-9299
CVE-2016-9299 is a critical-severity vulnerability in Jenkins with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 97% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-90.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 97% (100th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-90
- Affected product: Jenkins
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2016-9299?
- 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.
- How severe is CVE-2016-9299?
- CVE-2016-9299 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2016-9299 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 97% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-9299?
- CVE-2016-9299 primarily affects Jenkins. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2016-9299?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2016-9299 published?
- CVE-2016-9299 was published on 2017-01-12 and last updated on 2026-06-17.
References
- http://www.openwall.com/lists/oss-security/2016/11/12/4
- http://www.openwall.com/lists/oss-security/2016/11/14/9
- http://www.securityfocus.com/bid/94281
- http://www.slideshare.net/codewhitesec/java-deserialization-vulnerabilities-the-forgotten-bug-class-deepsec-edition
- https://groups.google.com/forum/#%21original/jenkinsci-advisories/-fc-w9tNEJE/GRvEzWoJBgAJ
- https://groups.google.com/forum/#%21original/jenkinsci-advisories/-fc-w9tNEJE/LZ7EOS0fBgAJ
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZW2KUKYLNLVDB7STLHLYALCUFLEGCRM6/
- https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-11-16
- https://www.cloudbees.com/jenkins-security-advisory-2016-11-16
- https://www.exploit-db.com/exploits/44642/
Affected products (3)
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*
- cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*
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