CVE-2016-9299

Exp

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 update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-9299 is rated High Exploit Risk (94.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 97.65%, 100th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +8.40% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2016-9299

EDB-ID Source Kind Published Link
44642 exploit_db edb 2018-05-17 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2016-9299

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 89.25% 97.65% +8.40%
2 2026-03-29 86.03% 89.25% +3.22%
3 2026-03-04 — 86.03% —

Full EPSS history (58 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-9299

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2016-9299

GitHub Security Advisory for CVE-2016-9299

GHSA-2x9h-h3c4-wqqh · Severity: critical · Ecosystem: maven — Improper Neutralization of Special Elements used in an LDAP Query in Jenkins

OS Trackers for CVE-2016-9299

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2016-9299
ubuntu high CVE-2016-9299 high priority: Ubuntu including 1 source packages (jenkins), 6 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): DNE 4, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2016-9299

Affected software / configurations for CVE-2016-9299

Vendor Product Version Raw CPE
jenkins jenkins <= 2.19.2 cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
jenkins jenkins <= 2.31 cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*
fedoraproject fedora 25 cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*

References for CVE-2016-9299

URL Tags
http://www.openwall.com/lists/oss-security/2016/11/12/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/14/9 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/94281 Third Party Advisory VDB Entry
http://www.slideshare.net/codewhitesec/java-deserialization-vulnerabilities-the-forgotten-bug-class-deepsec-edition Third Party Advisory
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 Vendor Advisory
https://www.cloudbees.com/jenkins-security-advisory-2016-11-16 Vendor Advisory
https://www.exploit-db.com/exploits/44642/ Third Party Advisory VDB Entry
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