SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-8103

The Jenkins CLI subsystem in Jenkins before 1.638 and LTS before 1.625.2 allows remote attackers to execute arbitrary code via a crafted serialized Java object, related to a problematic webapps/ROOT/WEB-INF/lib/commons-collections-*.jar file and the…

EXPLOIT ✓CRITICAL 9.8EPSS 91.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 91.9%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

The Jenkins CLI subsystem in Jenkins before 1.638 and LTS before 1.625.2 allows remote attackers to execute arbitrary code via a crafted serialized Java object, related to a problematic webapps/ROOT/WEB-INF/lib/commons-collections-*.jar file and the "Groovy variant in 'ysoserial'".

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
91.86% probability · 100th percentile
Public exploits
1 in Exploit-DB · verified · first 15 December 2015
CISA KEV
Not listed
Weakness
CWE-502
Affected
redhat/openshift container platform · jenkins/jenkins
Source
cve@mitre.org
EPSS trend
0%48%95%24 October 2026: 91.86%4 November 2026: 91.86%24 October 20264 November 2026

EPSS moved from 91.9% on 24 October 2026 to 91.9% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-38983source ↗Jenkins CLI - RMI Java Deserialization (Metasploit)java · Metasploitremote15 December 2015yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.