What is CVE-2012-5955?

CVE-2012-5955 is a vulnerability in IBM HTTP Server. Published 2012-12-20.

Is CVE-2012-5955 known to be exploited?

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

Vulnerability in IBM HTTP Server

CVE-2012-5955

Unspecified vulnerability in the IBM HTTP Server component 5.3 in IBM WebSphere Application Server (WAS) for z/OS allows remote attackers to execute arbitrary commands via unknown vectors.

Published 2012-12-20 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 10.0 (High). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.044 (91.0th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.044 · newest: 0.044 · change: 0.000

Affected products

IBM HTTP Server — versions 5.3
IBM Websphere Application Server

Public proof-of-concept exploits

mainframed/MainTP

References

exchange.xforce.ibmcloud.com/vulnerabilities/80684 (vdb-entry)
www-01.ibm.com/support/docview.wss (Vendor Advisory)

Frequently asked questions

What is CVE-2012-5955?: CVE-2012-5955 is a vulnerability in IBM HTTP Server. Published 2012-12-20.
Is CVE-2012-5955 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.