CVE-2012-3963 is a critical use-after-free vulnerability in the js::gc::MapAllocToTraceKind function affecting Mozilla Firefox, Thunderbird, and SeaMonkey versions prior to 15.0 and 10.0.7 ESR. With a CVSS score of 10.0, this vulnerability allows remote attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability, requiring no authentication or complex attack vectors. Despite its severity, there is no known public exploit code (Metasploit, Nuclei, ExploitDB), it is not listed in CISA's KEV catalog, and it has received minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 15.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
>= 10.0, < 10.0.7CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
< 2.12CPE matchmatch criteria | cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* | ||
< 15.0CPE matchmatch criteria | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | ||
>= 10.0, < 10.0.7CPE matchmatch criteria | cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.