What is CVE-2016-9299?

CVE-2016-9299 is a critical-severity vulnerability in Jenkins, classified under LDAP Injection. CVSS score: 9.8/10. Published 2017-01-12.

How severe is CVE-2016-9299?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2016-9299 known to be exploited?

15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

LDAP Injection in Jenkins

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.

Published 2017-01-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.969 (99.9th percentile), scored 2026-10-14.

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.869 · newest: 0.969 · change: +0.101

Affected products

Jenkins
Fedoraproject Fedora — versions 25

Weakness classification (CWE)

CWE-90 — LDAP Injection

Public proof-of-concept exploits

References

www.exploit-db.com/exploits/44642/ (VDB Entry, Third Party Advisory, exploit)
www.openwall.com/lists/oss-security/2016/11/12/4 (mailing-list, Mailing List, Third Party Advisory)
www.securityfocus.com/bid/94281 (VDB Entry, Third Party Advisory, vdb-entry)
groups.google.com/forum/ (mailing-list)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-11-16 (Vendor Advisory)
groups.google.com/forum/ (mailing-list)
www.slideshare.net/codewhitesec/java-deserialization-vulnerabilities-the-forgot… (Third Party Advisory)
www.cloudbees.com/jenkins-security-advisory-2016-11-16 (Vendor Advisory)
www.openwall.com/lists/oss-security/2016/11/14/9 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2016-9299?: CVE-2016-9299 is a critical-severity vulnerability in Jenkins, classified under LDAP Injection. CVSS score: 9.8/10. Published 2017-01-12.
How severe is CVE-2016-9299?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2016-9299 known to be exploited?: 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.