CVE-2013-6490

The SIMPLE protocol functionality in Pidgin before 2.10.8 allows remote attackers to have an unspecified impact via a negative Content-Length header, which triggers a buffer overflow.

Published: 2014-02-06 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-6490 is rated High Risk (69/100): CVSS Critical severity, with high exploitation likelihood (EPSS 38.98%, 97th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2013-6490

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 2026-02-17 45.38% 38.98% -6.40%
2 2025-12-03 51.22% 45.38% -5.84%
3 2025-09-22 — 51.22% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-6490

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C 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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2013-6490

OS Trackers for CVE-2013-6490

vendor priority summary link
debian not yet assigned CVE-2013-6490 not yet assigned priority: Debian including 1 source packages (pidgin), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-6490
gentoo high CVE-2013-6490: 1 GLSA(s) (201405-22), 1 atom(s) (net-im/pidgin); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-6490
redhat medium — https://access.redhat.com/security/cve/CVE-2013-6490
ubuntu medium CVE-2013-6490 medium priority: Ubuntu including 1 source packages (pidgin), 5 status rows across 5 suites (lucid, precise, quantal, saucy, upstream): released 4, ignored 1. https://ubuntu.com/security/CVE-2013-6490

Affected software / configurations for CVE-2013-6490

Vendor Product Version Raw CPE
pidgin pidgin <= 2.10.7 cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:*
pidgin pidgin 2.0.0 cpe:2.3:a:pidgin:pidgin:2.0.0:*:*:*:*:*:*:*
pidgin pidgin 2.0.1 cpe:2.3:a:pidgin:pidgin:2.0.1:*:*:*:*:*:*:*
pidgin pidgin 2.0.2 cpe:2.3:a:pidgin:pidgin:2.0.2:*:*:*:*:*:*:*
pidgin pidgin 2.1.0 cpe:2.3:a:pidgin:pidgin:2.1.0:*:*:*:*:*:*:*
pidgin pidgin 2.1.1 cpe:2.3:a:pidgin:pidgin:2.1.1:*:*:*:*:*:*:*
pidgin pidgin 2.2.0 cpe:2.3:a:pidgin:pidgin:2.2.0:*:*:*:*:*:*:*
pidgin pidgin 2.2.1 cpe:2.3:a:pidgin:pidgin:2.2.1:*:*:*:*:*:*:*
pidgin pidgin 2.2.2 cpe:2.3:a:pidgin:pidgin:2.2.2:*:*:*:*:*:*:*
pidgin pidgin 2.3.0 cpe:2.3:a:pidgin:pidgin:2.3.0:*:*:*:*:*:*:*
pidgin pidgin 2.3.1 cpe:2.3:a:pidgin:pidgin:2.3.1:*:*:*:*:*:*:*
pidgin pidgin 2.4.0 cpe:2.3:a:pidgin:pidgin:2.4.0:*:*:*:*:*:*:*
pidgin pidgin 2.4.1 cpe:2.3:a:pidgin:pidgin:2.4.1:*:*:*:*:*:*:*
pidgin pidgin 2.4.2 cpe:2.3:a:pidgin:pidgin:2.4.2:*:*:*:*:*:*:*
pidgin pidgin 2.4.3 cpe:2.3:a:pidgin:pidgin:2.4.3:*:*:*:*:*:*:*
pidgin pidgin 2.5.0 cpe:2.3:a:pidgin:pidgin:2.5.0:*:*:*:*:*:*:*
pidgin pidgin 2.5.1 cpe:2.3:a:pidgin:pidgin:2.5.1:*:*:*:*:*:*:*
pidgin pidgin 2.5.2 cpe:2.3:a:pidgin:pidgin:2.5.2:*:*:*:*:*:*:*
pidgin pidgin 2.5.3 cpe:2.3:a:pidgin:pidgin:2.5.3:*:*:*:*:*:*:*
pidgin pidgin 2.5.4 cpe:2.3:a:pidgin:pidgin:2.5.4:*:*:*:*:*:*:*
pidgin pidgin 2.5.5 cpe:2.3:a:pidgin:pidgin:2.5.5:*:*:*:*:*:*:*
pidgin pidgin 2.5.6 cpe:2.3:a:pidgin:pidgin:2.5.6:*:*:*:*:*:*:*
pidgin pidgin 2.5.7 cpe:2.3:a:pidgin:pidgin:2.5.7:*:*:*:*:*:*:*
pidgin pidgin 2.5.8 cpe:2.3:a:pidgin:pidgin:2.5.8:*:*:*:*:*:*:*
pidgin pidgin 2.5.9 cpe:2.3:a:pidgin:pidgin:2.5.9:*:*:*:*:*:*:*
pidgin pidgin 2.6.0 cpe:2.3:a:pidgin:pidgin:2.6.0:*:*:*:*:*:*:*
pidgin pidgin 2.6.1 cpe:2.3:a:pidgin:pidgin:2.6.1:*:*:*:*:*:*:*
pidgin pidgin 2.6.2 cpe:2.3:a:pidgin:pidgin:2.6.2:*:*:*:*:*:*:*
pidgin pidgin 2.6.3 cpe:2.3:a:pidgin:pidgin:2.6.3:*:*:*:*:*:*:*
pidgin pidgin 2.6.4 cpe:2.3:a:pidgin:pidgin:2.6.4:*:*:*:*:*:*:*
pidgin pidgin 2.6.5 cpe:2.3:a:pidgin:pidgin:2.6.5:*:*:*:*:*:*:*
pidgin pidgin 2.6.6 cpe:2.3:a:pidgin:pidgin:2.6.6:*:*:*:*:*:*:*
pidgin pidgin 2.7.0 cpe:2.3:a:pidgin:pidgin:2.7.0:*:*:*:*:*:*:*
pidgin pidgin 2.7.1 cpe:2.3:a:pidgin:pidgin:2.7.1:*:*:*:*:*:*:*
pidgin pidgin 2.7.2 cpe:2.3:a:pidgin:pidgin:2.7.2:*:*:*:*:*:*:*
pidgin pidgin 2.7.3 cpe:2.3:a:pidgin:pidgin:2.7.3:*:*:*:*:*:*:*
pidgin pidgin 2.7.4 cpe:2.3:a:pidgin:pidgin:2.7.4:*:*:*:*:*:*:*
pidgin pidgin 2.7.5 cpe:2.3:a:pidgin:pidgin:2.7.5:*:*:*:*:*:*:*
pidgin pidgin 2.7.6 cpe:2.3:a:pidgin:pidgin:2.7.6:*:*:*:*:*:*:*
pidgin pidgin 2.7.7 cpe:2.3:a:pidgin:pidgin:2.7.7:*:*:*:*:*:*:*
pidgin pidgin 2.7.8 cpe:2.3:a:pidgin:pidgin:2.7.8:*:*:*:*:*:*:*
pidgin pidgin 2.7.9 cpe:2.3:a:pidgin:pidgin:2.7.9:*:*:*:*:*:*:*
pidgin pidgin 2.7.10 cpe:2.3:a:pidgin:pidgin:2.7.10:*:*:*:*:*:*:*
pidgin pidgin 2.7.11 cpe:2.3:a:pidgin:pidgin:2.7.11:*:*:*:*:*:*:*
pidgin pidgin 2.8.0 cpe:2.3:a:pidgin:pidgin:2.8.0:*:*:*:*:*:*:*
pidgin pidgin 2.9.0 cpe:2.3:a:pidgin:pidgin:2.9.0:*:*:*:*:*:*:*
pidgin pidgin 2.10.0 cpe:2.3:a:pidgin:pidgin:2.10.0:*:*:*:*:*:*:*
pidgin pidgin 2.10.1 cpe:2.3:a:pidgin:pidgin:2.10.1:*:*:*:*:*:*:*
pidgin pidgin 2.10.2 cpe:2.3:a:pidgin:pidgin:2.10.2:*:*:*:*:*:*:*
pidgin pidgin 2.10.3 cpe:2.3:a:pidgin:pidgin:2.10.3:*:*:*:*:*:*:*
pidgin pidgin 2.10.4 cpe:2.3:a:pidgin:pidgin:2.10.4:*:*:*:*:*:*:*
pidgin pidgin 2.10.5 cpe:2.3:a:pidgin:pidgin:2.10.5:*:*:*:*:*:*:*
pidgin pidgin 2.10.6 cpe:2.3:a:pidgin:pidgin:2.10.6:*:*:*:*:*:*:*

References for CVE-2013-6490

cvelogic Threat Intelligence