CVE-2007-4768 describes a heap-based buffer overflow in the Perl-Compatible Regular Expression (PCRE) library, affecting versions prior to 7.3. This vulnerability allows remote attackers to execute arbitrary code by crafting a malicious regex pattern containing a singleton Unicode sequence within a character class. With a CVSS score of 6.8 (medium severity), successful exploitation requires moderate attack complexity and could lead to partial compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 6.0CPE matchmatch criteria | cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:* | ||
<= 6.1CPE matchmatch criteria | cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:* | ||
<= 7.3CPE matchmatch criteria | cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P
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