High 9.3Published Sep 9, 2010

CVE-2010-2770Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 on Mac OS X allow remote attackers to cause a denial of service (memo…

Updated under an hour ago (Nov 2, 2026, 1:40 AM ET)

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It affects mozilla firefox and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 on Mac OS X allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via a crafted font in a data: URL.

CVSS: 9.3 HIGH (v2.0, NVD)AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

mozilla firefox mozilla:firefox	3.6; 3.6.2; 3.6.3; 3.6.4; 3.6.6; 3.6.7; 3.6.8; through 3.5.11; and 102 more ranges	NVD
mozilla thunderbird mozilla:thunderbird	through 3.0.6; 0.1; 0.2; 0.3; 0.4; 0.5; 0.6; 0.7; and 63 more ranges	NVD
mozilla seamonkey mozilla:seamonkey	through 2.0.6; 1.0; 1.0; 1.0; 1.0.1; 1.0.2; 1.0.3; 1.0.4; and 36 more ranges	NVD

References

References

http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00002.html
http://www.mozilla.org/security/announce/2010/mfsa2010-58.html	vendor-advisory
http://www.vupen.com/english/advisories/2010/2323
https://bugzilla.mozilla.org/show_bug.cgi?id=583520
https://exchange.xforce.ibmcloud.com/vulnerabilities/61663
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11550

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.