CVE-2015-8383

9.8 criticalEPSS 6.1%

Critical (9.8). EPSS 6.1% chance of exploitation in the next 30 days.

PCRE before 8.38 mishandles certain repeated conditional groups, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 6.1% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-10-31)
CWE: CWE-119
Published: 2015-12-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

fedoraproject:fedora
pcre:perl_compatible_regular_expression_library
php:php

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
http://www.openwall.com/lists/oss-security/2015/11/29/1
https://access.redhat.com/errata/RHSA-2016:1132

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