CVE-2013-6477

CVE-2013-6477 is a medium-severity vulnerability in Pidgin with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 4% (89th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Pidgin
• Published: 2014-02-06
• Last modified: 2026-06-17

Description

Multiple integer signedness errors in libpurple in Pidgin before 2.10.8 allow remote attackers to cause a denial of service (application crash) via a crafted timestamp value in an XMPP message.

Frequently asked questions

What is CVE-2013-6477?

Multiple integer signedness errors in libpurple in Pidgin before 2.10.8 allow remote attackers to cause a denial of service (application crash) via a crafted timestamp value in an XMPP message.

How severe is CVE-2013-6477?

CVE-2013-6477 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2013-6477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-6477?

CVE-2013-6477 primarily affects Pidgin. In total, 53 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-6477?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-6477 published?

CVE-2013-6477 was published on 2014-02-06 and last updated on 2026-06-17.

References

• http://hg.pidgin.im/pidgin/main/rev/852014ae74a0
• http://lists.opensuse.org/opensuse-updates/2014-02/msg00039.html
• http://lists.opensuse.org/opensuse-updates/2014-03/msg00005.html
• http://pidgin.im/news/security/?id=71
• http://www.debian.org/security/2014/dsa-2859
• http://www.ubuntu.com/usn/USN-2100-1
• https://rhn.redhat.com/errata/RHSA-2014-0139.html

Affected products (53)

• cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.4.3:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.5.4:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.5.5:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.5.6:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.5.7:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.5.8:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.5.9:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.6.3:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.6.4:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.6.5:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.6.6:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.7.4:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.7.5:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.7.6:*:*:*:*:*:*:*
• cpe:2.3:a:pidgin:pidgin:2.7.7:*:*:*:*:*:*:*

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• CVE-2011-3185 — Critical (CVSS 9.3): gtkutils.c in Pidgin before 2.10.0 on Windows allows user-assisted remote attackers to execute arbitrary programs via a…
• CVE-2009-1376 — Critical (CVSS 9.3): Multiple integer overflows in the msn_slplink_process_msg functions in the MSN protocol handler in (1)…

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