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Vulnerability record · CVE-2015-8391 · published 2 December 2015

CVE-2015-8391: Pcre memory buffer overflow vulnerability

Pcre · Pcre

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.

9.8 CVSS 3.1 Critical EPSS 6.4% · top 6.6% CWE-119 · Memory buffer overflow
9.8CVSS 3.1 base score, v2 9.0
6.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
26References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1025.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html Third Party Advisory
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup Broken Link
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886 Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/29/1 Mailing ListThird Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html Third Party Advisory
http://www.securityfocus.com/bid/82990 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2016:1132 Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa128 Permissions Required
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 Third Party Advisory
https://security.gentoo.org/glsa/201607-02 Third Party Advisory
https://security.netapp.com/advisory/ntap-20230216-0002/
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1025.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html Third Party Advisory
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup Broken Link
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886 Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/29/1 Mailing ListThird Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html Third Party Advisory
http://www.securityfocus.com/bid/82990 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2016:1132 Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa128 Permissions Required
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 Third Party Advisory
https://security.gentoo.org/glsa/201607-02 Third Party Advisory
https://security.netapp.com/advisory/ntap-20230216-0002/

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Source: NIST National Vulnerability Database (record CVE-2015-8391), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.