CVE-2013-1735

CVE-2013-1735 is a critical-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 9.3. 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-20.

Key facts

• Severity: Critical (CVSS 2.0 base score 9.3)
• EPSS exploit prediction: 5% (91st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Mozilla Firefox
• Published: 2013-09-18
• Last modified: 2026-06-16

Description

Use-after-free vulnerability in the mozilla::layout::ScrollbarActivity function in Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbird ESR 17.x before 17.0.9, and SeaMonkey before 2.21 allows remote attackers to execute arbitrary code via vectors related to image-document scrolling.

Frequently asked questions

What is CVE-2013-1735?

Use-after-free vulnerability in the mozilla::layout::ScrollbarActivity function in Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbird ESR 17.x before 17.0.9, and SeaMonkey before 2.21 allows remote attackers to execute arbitrary code via vectors related to image-document scrolling.

How severe is CVE-2013-1735?

CVE-2013-1735 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2013-1735 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1735?

CVE-2013-1735 primarily affects Mozilla Firefox. In total, 137 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1735?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2013-1735 published?

CVE-2013-1735 was published on 2013-09-18 and last updated on 2026-06-16.

References

• http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115907.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116610.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-September/117526.html
• http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00005.html
• http://lists.opensuse.org/opensuse-updates/2013-09/msg00055.html
• http://lists.opensuse.org/opensuse-updates/2013-09/msg00057.html
• http://lists.opensuse.org/opensuse-updates/2013-09/msg00059.html
• http://lists.opensuse.org/opensuse-updates/2013-09/msg00060.html
• http://lists.opensuse.org/opensuse-updates/2013-09/msg00061.html
• http://rhn.redhat.com/errata/RHSA-2013-1268.html
• http://rhn.redhat.com/errata/RHSA-2013-1269.html
• http://www.debian.org/security/2013/dsa-2762
• http://www.mozilla.org/security/announce/2013/mfsa2013-90.html
• http://www.securityfocus.com/bid/62479
• http://www.ubuntu.com/usn/USN-1951-1
• http://www.ubuntu.com/usn/USN-1952-1
• https://bugzilla.mozilla.org/show_bug.cgi?id=898871
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18443

Affected products (137)

• cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:19.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:19.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:19.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:20.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:20.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:21.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:22.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:23.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:17.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:17.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:17.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:17.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:17.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:17.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:17.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:17.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:17.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:17.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:17.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:17.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:17.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:17.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:17.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:17.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:17.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:17.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0:alpha_1:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0:alpha_2:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0:alpha_3:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0:beta_1:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0:beta_2:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.4:*:*:*:*:*:*:*

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