CVE-2012-3960 is a critical use-after-free vulnerability in the mozSpellChecker::SetCurrentDictionary function affecting Mozilla Firefox, Thunderbird, and SeaMonkey. This flaw allows remote attackers to execute arbitrary code or cause a denial of service through heap memory corruption. With a CVSS score of 10.0, it represents a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant 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.