CVE-2005-4872: pcre
Vulnerability summary
CVE-2005-4872 is a medium (CVSS 4.3) vulnerability in pcre. EPSS estimates a 2.32% chance of exploitation in the next 30 days, higher than 83.4% of scored vulnerabilities.
Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1Timeline
- 14-11-2007PublishedVulnerability first disclosed.
- 08-08-2024Last modifiedVulnerability information updated.
Description
Perl-Compatible Regular Expression (PCRE) library before 6.2 does not properly count the number of named capturing subpatterns, which allows context-dependent attackers to cause a denial of service (crash) via a regular expression with a large number of named subpatterns, which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
2.32%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.32% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- pcre3< 6.2-1
Pcre1 product
- pcre≤ 6.1
2 vendors · 2 products
References
14 links- support.avaya.com/elmodocs2/security/ASA-2007-493.htmX Refsource CONFIRM
- www.pcre.org/changelog.txtX Refsource CONFIRM
Show all 14 references
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11615VDB EntrySignatureX Refsource OVAL
- scary.beasts.org/security/CESA-2007-006.htmlX Refsource MISC