CVE-2012-0456

CVE-2012-0456 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 5.0. 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-200.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 3% (84th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-200
• Affected product: Mozilla Firefox
• Published: 2012-03-14
• Last modified: 2026-06-16

Description

The SVG Filters implementation in Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 might allow remote attackers to obtain sensitive information from process memory via vectors that trigger an out-of-bounds read.

Frequently asked questions

What is CVE-2012-0456?

The SVG Filters implementation in Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 might allow remote attackers to obtain sensitive information from process memory via vectors that trigger an out-of-bounds read.

How severe is CVE-2012-0456?

CVE-2012-0456 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-0456 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0456?

CVE-2012-0456 primarily affects Mozilla Firefox. In total, 112 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0456?

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

When was CVE-2012-0456 published?

CVE-2012-0456 was published on 2012-03-14 and last updated on 2026-06-16.

References

• http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00014.html
• http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00015.html
• http://lists.opensuse.org/opensuse-updates/2012-03/msg00042.html
• http://rhn.redhat.com/errata/RHSA-2012-0387.html
• http://rhn.redhat.com/errata/RHSA-2012-0388.html
• http://secunia.com/advisories/48359
• http://secunia.com/advisories/48402
• http://secunia.com/advisories/48414
• http://secunia.com/advisories/48495
• http://secunia.com/advisories/48496
• http://secunia.com/advisories/48513
• http://secunia.com/advisories/48553
• http://secunia.com/advisories/48561
• http://secunia.com/advisories/48624
• http://secunia.com/advisories/48629
• http://secunia.com/advisories/48823
• http://secunia.com/advisories/48920
• http://www.debian.org/security/2012/dsa-2433
• http://www.debian.org/security/2012/dsa-2458
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:031
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:032
• http://www.mozilla.org/security/announce/2012/mfsa2012-14.html
• http://www.securitytracker.com/id?1026801
• http://www.securitytracker.com/id?1026803
• http://www.securitytracker.com/id?1026804
• http://www.ubuntu.com/usn/USN-1400-1
• http://www.ubuntu.com/usn/USN-1400-2
• http://www.ubuntu.com/usn/USN-1400-3
• http://www.ubuntu.com/usn/USN-1400-4
• http://www.ubuntu.com/usn/USN-1400-5

Affected products (112)

• cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:10.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:10.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:10.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:10.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:10.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird_esr:10.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:-:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0:alpha:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0:beta:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1:alpha:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1:beta:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.9:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.10:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.11:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.12:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.13:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.14:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.15:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.16:*:*:*:*:*:*:*

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