← Vulnerability feed

Vulnerability record · CVE-2015-8392 · published 2 December 2015

CVE-2015-8392: Pcre perl compatible regular expression library memory buffer overflow vulnerability

Pcre · Perl Compatible Regular Expression Library

PCRE before 8.38 mishandles certain instances of the (?| substring, which allows remote attackers to cause a denial of service (unintended recursion and buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, a related issue to CVE-2015-8384 and CVE-2015-8395.

7.5 CVSS 2.0 High EPSS 3.6% · top 11.1% CWE-119 · Memory buffer overflow
7.5CVSS 2.0 base score
3.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

PCRE before 8.38 mishandles certain instances of the (?| substring, which allows remote attackers to cause a denial of service (unintended recursion and buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, a related issue to CVE-2015-8384 and CVE-2015-8395.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup Release NotesVendor Advisory
http://www.openwall.com/lists/oss-security/2015/11/29/1 Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2016:1132
https://bto.bluecoat.com/security-advisory/sa128 Third Party Advisory
https://security.gentoo.org/glsa/201607-02
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup Release NotesVendor Advisory
http://www.openwall.com/lists/oss-security/2015/11/29/1 Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2016:1132
https://bto.bluecoat.com/security-advisory/sa128 Third Party Advisory
https://security.gentoo.org/glsa/201607-02

Track CVE-2015-8392 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2015-8394Pcre perl compatible regular expression library integer overflow vulnerabilityPCRE before 8.38 mishandles the (?(<digits>) and (?(R<digits>) conditions, which allows remote attackers to cause a denial of service (integer overfl…EPSS 4.8%9.8CVE-2015-8390Pcre perl compatible regular expression library use of uninitialized resource vulnerabilityPCRE before 8.38 mishandles the [: and \\ substrings in character classes, which allows remote attackers to cause a denial of service (uninitialized …EPSS 4.7%9.8CVE-2015-8389Pcre perl compatible regular expression library memory buffer overflow vulnerabilityPCRE before 8.38 mishandles the /(?:|a|){100}x/ pattern and related patterns, which allows remote attackers to cause a denial of service (infinite re…EPSS 3.9%9.8CVE-2015-8386Pcre perl compatible regular expression library memory buffer overflow vulnerabilityPCRE before 8.38 mishandles the interaction of lookbehind assertions and mutually recursive subpatterns, which allows remote attackers to cause a den…EPSS 6.9%9.8CVE-2015-8383Pcre perl compatible regular expression library memory buffer overflow vulnerabilityPCRE before 8.38 mishandles certain repeated conditional groups, which allows remote attackers to cause a denial of service (buffer overflow) or poss…EPSS 6.1%7.5CVE-2015-8395Pcre perl compatible regular expression library memory buffer overflow vulnerabilityPCRE before 8.38 mishandles certain references, which allows remote attackers to cause a denial of service or possibly have unspecified other impact …EPSS 3.5%7.5CVE-2015-8393Pcre perl compatible regular expression library information exposure vulnerabilitypcregrep in PCRE before 8.38 mishandles the -q option for binary files, which might allow remote attackers to obtain sensitive information via a craf…EPSS 4.4%7.5CVE-2015-8388Oracle linux memory buffer overflow vulnerabilityPCRE before 8.38 mishandles the /(?=di(?<=(?1))|(?=(.))))/ pattern and related patterns with an unmatched closing parenthesis, which allows remote at…EPSS 6.6%

Source: NIST National Vulnerability Database (record CVE-2015-8392), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.