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CVE-2013-5601

35
FAUCET Score

CVE-2013-5601 is a critical use-after-free vulnerability in the nsEventListenerManager::SetEventHandler function affecting Mozilla Firefox, Thunderbird, and SeaMonkey. This flaw allows remote attackers to execute arbitrary code due to improper memory handling related to garbage collection. With a CVSS score of 10.0, it presents a severe risk, enabling complete compromise of confidentiality, integrity, and availability with low attack complexity. Despite its high severity, there is no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.22CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:beta2:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:2.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:2.0:alpha_1:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:2.0:alpha_2:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:2.0:alpha_3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.30%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0530 is in the 86th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:17.0.10-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:17.0.10-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:17.0.10-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:17.0.10-1.el6_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:17.0.10-1.el6_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xulrunner-0:17.0.10-1.el6_4
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-5601Critical

Mozilla: Miscellaneous use-after-free issues found through ASAN fuzzing (MFSA 2013-100)

Oct 29, 2013

References

lists.opensuse.org / opensuse-security-announce/2013-11/msg00005.html
lists.opensuse.org / opensuse-security-announce/2013-11/msg00006.html
lists.opensuse.org / opensuse-security-announce/2013-11/msg00014.html
rhn.redhat.com / errata/RHSA-2013-1476.html
rhn.redhat.com / errata/RHSA-2013-1480.html
bugzilla.mozilla.org / show_bug.cgi
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18495
security.gentoo.org / glsa/201504-01
debian.org / security/2013/dsa-2788
debian.org / security/2013/dsa-2797
mozilla.org / security/announce/2013/mfsa2013-100.html
Vendor Advisory