CVE-2012-4214 is a critical use-after-free vulnerability affecting Mozilla Firefox, Thunderbird, and SeaMonkey, specifically within the nsTextEditorState::PrepareEditor function. This flaw allows remote attackers to execute arbitrary code or cause a denial of service through heap memory corruption via unspecified vectors. With a CVSS score of 9.3, it is highly severe, requiring no authentication and having high impact on confidentiality, integrity, and availability, though it requires medium attack complexity. While the vulnerability has a high FAUCET Risk Score and some community discussion, there is no evidence of active exploitation, nor are there publicly available exploits in Metasploit, Nuclei, or ExploitDB.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 17.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
>= 10.0, < 10.0.11CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
< 2.14CPE matchmatch criteria | cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* | ||
< 17.0CPE matchmatch criteria | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | ||
>= 10.0, < 10.0.11CPE matchmatch criteria | cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:C/I:C/A:C
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 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.