CVE-2013-5595

CVE-2013-5595 is a medium-severity vulnerability in Mozilla Thunderbird Esr with a CVSS 2.0 base score of 4.3. 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-119.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.3)
• EPSS exploit prediction: 2% (79th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Mozilla Thunderbird Esr
• Published: 2013-10-30
• Last modified: 2026-06-16

Description

The JavaScript engine in Mozilla Firefox before 25.0, Firefox ESR 17.x before 17.0.10 and 24.x before 24.1, Thunderbird before 24.1, Thunderbird ESR 17.x before 17.0.10, and SeaMonkey before 2.22 does not properly allocate memory for unspecified functions, which allows remote attackers to conduct buffer overflow attacks via a crafted web page.

Frequently asked questions

What is CVE-2013-5595?

The JavaScript engine in Mozilla Firefox before 25.0, Firefox ESR 17.x before 17.0.10 and 24.x before 24.1, Thunderbird before 24.1, Thunderbird ESR 17.x before 17.0.10, and SeaMonkey before 2.22 does not properly allocate memory for unspecified functions, which allows remote attackers to conduct buffer overflow attacks via a crafted web page.

How severe is CVE-2013-5595?

CVE-2013-5595 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2013-5595 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-5595?

CVE-2013-5595 primarily affects Mozilla Thunderbird Esr. In total, 148 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-5595?

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

When was CVE-2013-5595 published?

CVE-2013-5595 was published on 2013-10-30 and last updated on 2026-06-16.

References

• http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00006.html
• http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00014.html
• http://rhn.redhat.com/errata/RHSA-2013-1476.html
• http://rhn.redhat.com/errata/RHSA-2013-1480.html
• http://www.debian.org/security/2013/dsa-2788
• http://www.debian.org/security/2013/dsa-2797
• http://www.mozilla.org/security/announce/2013/mfsa2013-96.html
• http://www.securityfocus.com/bid/63421
• https://bugzilla.mozilla.org/show_bug.cgi?id=916580
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18694
• https://security.gentoo.org/glsa/201504-01

Affected products (148)

• 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:thunderbird_esr:17.0.9:*:*:*:*:*:*:*
• 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:23.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:*:beta2:*:*:*:*:*:*
• 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:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.10:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:2.0.11:*:*:*:*:*:*:*

More vulnerabilities in Mozilla Thunderbird Esr

• CVE-2013-5603 — Critical (CVSS 10.0): Use-after-free vulnerability in the nsContentUtils::ContentIsHostIncludingDescendantOf function in Mozilla Firefox…
• CVE-2013-5602 — Critical (CVSS 10.0): The Worker::SetEventListener function in the Web workers implementation in Mozilla Firefox before 25.0, Firefox ESR…
• CVE-2013-5601 — Critical (CVSS 10.0): Use-after-free vulnerability in the nsEventListenerManager::SetEventHandler function in Mozilla Firefox before 25.0,…
• CVE-2013-5600 — Critical (CVSS 10.0): Use-after-free vulnerability in the nsIOService::NewChannelFromURIWithProxyFlags function in Mozilla Firefox before…
• CVE-2013-5599 — Critical (CVSS 10.0): Use-after-free vulnerability in the nsIPresShell::GetPresContext function in the PresShell (aka presentation shell)…
• CVE-2013-5597 — Critical (CVSS 10.0): Use-after-free vulnerability in the nsDocLoader::doStopDocumentLoad function in Mozilla Firefox before 25.0, Firefox…

All CVEs affecting Mozilla Thunderbird Esr →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

• CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
• CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
• CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
• CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →