The pcre_compile function in pcre_compile.c in PCRE before 8.38 mishandles certain [: nesting, which allows remote attackers to cause a denial of service (CPU consumption) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
Published 2015-12-02 01:59:15
Updated 2023-02-16 14:15:14
Source MITRE
View at NVD,   CVE.org
Vulnerability category: OverflowDenial of service

Threat overview for CVE-2015-8391

Top countries where our scanners detected CVE-2015-8391
Top open port discovered on systems with this issue 80
IPs affected by CVE-2015-8391 67,056
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2015-8391!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2015-8391

2.73%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 89 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2015-8391

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.0
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:C
10.0
8.5
NIST
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2015-8391

References for CVE-2015-8391

Products affected by CVE-2015-8391

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