What is CVE-2012-5645?

CVE-2012-5645 is a high-severity vulnerability in Freeciv, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2019-12-30.

How severe is CVE-2012-5645?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Freeciv

CVE-2012-5645

A denial of service flaw was found in the way the server component of Freeciv before 2.3.4 processed certain packets. A remote attacker could send a specially-crafted packet that, when processed would lead to memory exhaustion or excessive CPU consumption.

Vulnerability class: DoS (Denial of Service)

Published 2019-12-30 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.043 (90.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: 0.000

Affected products

Freeciv — versions before 2.3.4
Fedoraproject Fedora — versions 16, 17, 18

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security-tracker.debian.org/tracker/CVE-2012-5645 (Third Party Advisory)
bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
access.redhat.com/security/cve/cve-2012-5645 (Broken Link)
www.openwall.com/lists/oss-security/2012/12/18/5 (Mailing List, Third Party Advisory)
www.openwall.com/lists/oss-security/2012/12/31/2 (Mailing List, Third Party Advisory)
lists.fedoraproject.org/pipermail/package-announce/2013-January/095378.html (Third Party Advisory)
lists.fedoraproject.org/pipermail/package-announce/2013-January/095381.html (Third Party Advisory)
lists.fedoraproject.org/pipermail/package-announce/2013-January/096391.html (Third Party Advisory)
www.openwall.com/lists/oss-security/2012/12/22/4 (Mailing List, Third Party Advisory)
www.openwall.com/lists/oss-security/2012/12/30/11 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2012-5645?: CVE-2012-5645 is a high-severity vulnerability in Freeciv, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2019-12-30.
How severe is CVE-2012-5645?: High severity. CVSS v3 base score is 7.5 out of 10.