CVE-2013-5607

CVE-2013-5607 is a high-severity vulnerability in Mozilla Netscape Portable Runtime with a CVSS 2.0 base score of 7.5. 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: High (CVSS 2.0 base score 7.5)
• EPSS exploit prediction: 3% (86th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Mozilla Netscape Portable Runtime
• Published: 2013-11-20
• Last modified: 2026-06-16

Description

Integer overflow in the PL_ArenaAllocate function in Mozilla Netscape Portable Runtime (NSPR) before 4.10.2, as used in Firefox before 25.0.1, Firefox ESR 17.x before 17.0.11 and 24.x before 24.1.1, and SeaMonkey before 2.22.1, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted X.509 certificate, a related issue to CVE-2013-1741.

Frequently asked questions

What is CVE-2013-5607?

Integer overflow in the PL_ArenaAllocate function in Mozilla Netscape Portable Runtime (NSPR) before 4.10.2, as used in Firefox before 25.0.1, Firefox ESR 17.x before 17.0.11 and 24.x before 24.1.1, and SeaMonkey before 2.22.1, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted X.509 certificate, a related issue to CVE-2013-1741.

How severe is CVE-2013-5607?

CVE-2013-5607 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2013-5607 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-5607?

CVE-2013-5607 primarily affects Mozilla Netscape Portable Runtime. In total, 171 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-5607?

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

When was CVE-2013-5607 published?

CVE-2013-5607 was published on 2013-11-20 and last updated on 2026-06-16.

References

• http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
• http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00000.html
• http://lists.opensuse.org/opensuse-updates/2013-11/msg00080.html
• http://rhn.redhat.com/errata/RHSA-2013-1791.html
• http://rhn.redhat.com/errata/RHSA-2013-1829.html
• http://security.gentoo.org/glsa/glsa-201406-19.xml
• http://www.debian.org/security/2013/dsa-2820
• http://www.mozilla.org/security/announce/2013/mfsa2013-103.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
• http://www.securityfocus.com/bid/63802
• http://www.ubuntu.com/usn/USN-2031-1
• http://www.ubuntu.com/usn/USN-2032-1
• http://www.ubuntu.com/usn/USN-2087-1
• https://bugzilla.mozilla.org/show_bug.cgi?id=927687
• https://groups.google.com/forum/message/raw?msg=mozilla.dev.tech.nspr/_8AcygMEjSA/mm_cqQzLPFQJ
• https://security.gentoo.org/glsa/201504-01

Affected products (171)

• cpe:2.3:a:mozilla:netscape_portable_runtime:*:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.6.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.6.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.6.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.6.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.6.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.6.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.7.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.7.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.7.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.8.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.8.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.8.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.8.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.8.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.8.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.8.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.8.9:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.9:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.9.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.9.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.9.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.9.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.9.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:netscape_portable_runtime:4.9.6:*:*:*:*:*:*:*

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