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CVE-2013-5609

36
FAUCET Score

CVE-2013-5609 describes multiple unspecified vulnerabilities in the browser engines of Mozilla Firefox (before 26.0), Firefox ESR (before 24.2), Thunderbird (before 24.2), and SeaMonkey (before 2.23), impacting various distributions including Canonical, Fedora, and Red Hat. This critical vulnerability, with a CVSS score of 9.8, allows remote attackers to cause a denial of service through memory corruption and application crashes, and potentially execute arbitrary code without user interaction. While there is no evidence of active exploitation (KEV: No) and no public exploit code (Metasploit, Nuclei, ExploitDB: None), the vulnerability has garnered significant community discussion with 10 mentions, indicating notable attention despite a lack of media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 26.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
>= 24.0, < 24.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 2.23CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
< 24.2CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
18CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:18:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.09%
Probability of exploitation in next 30 days
EPSS Percentile
94.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0809 is in the 89th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:24.2.0-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:24.2.0-2.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:24.2.0-1.el6_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:24.2.0-1.el6_5
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-5609Critical

Mozilla: Miscellaneous memory safety hazards (rv:24.2) (MFSA 2013-104)

Dec 10, 2013

References

lists.fedoraproject.org / pipermail/package-announce/2013-December/123437.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2013-December/124108.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2013-December/124257.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2014-January/125470.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2013-12/msg00010.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00085.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00086.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00087.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00119.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00120.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00121.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2014-01/msg00002.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2013-1812.html
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
ExploitIssue TrackingVendor Advisory
bugzilla.mozilla.org / show_bug.cgi
ExploitIssue TrackingVendor Advisory
bugzilla.mozilla.org / show_bug.cgi
ExploitIssue TrackingVendor Advisory
bugzilla.mozilla.org / show_bug.cgi
ExploitIssue TrackingVendor Advisory
security.gentoo.org / glsa/201504-01
Third Party Advisory
mozilla.org / security/announce/2013/mfsa2013-104.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
Third Party Advisory
securitytracker.com / id/1029470
Third Party AdvisoryVDB Entry
securitytracker.com / id/1029476
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2052-1
Third Party Advisory
ubuntu.com / usn/USN-2053-1
Third Party Advisory