CVE-2005-2491 describes an integer overflow vulnerability in the pcre_compile.c component of Perl Compatible Regular Expressions (PCRE) versions prior to 6.2. This flaw, affecting products like Python, Ethereal, and PHP, allows attackers to execute arbitrary code through specially crafted regular expressions containing malicious quantifier values, leading to a heap-based buffer overflow. With a CVSS score of 7.5, this vulnerability is considered highly severe, requiring no authentication and having low attack complexity, potentially leading to partial compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting it is not widely targeted.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.0CPE matchmatch criteria | cpe:2.3:a:pcre:pcre:5.0:*:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:a:pcre:pcre:6.0:*:*:*:*:*:*:* | ||
6.1CPE matchmatch criteria | cpe:2.3:a:pcre:pcre:6.1:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P
No social media mentions found for this CVE.
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.