CVE-2015-3210

Name: CVE-2015-3210
Creator: NVD / NIST
Published: 2016-12-13T16:59:00.187+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 9.16%

Last modified Jun 17, 2026

CVE-2015-3210 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Heap-based buffer overflow in PCRE 8.34 through 8.37 and PCRE2 10.10 allows remote attackers to execute arbitrary code via a crafted regular expression, as demonstrated by /^(?P=B)((?P=B)(?J:(?P<B>c)(?P<B>a(?P=B)))>WGXCREDITS)/, a different vulnerability than CVE-2015-8384.. EPSS estimates a 9.16% chance of exploitation in the next 30 days.

Description

Heap-based buffer overflow in PCRE 8.34 through 8.37 and PCRE2 10.10 allows remote attackers to execute arbitrary code via a crafted regular expression, as demonstrated by /^(?P=B)((?P=B)(?J:(?P<B>c)(?P<B>a(?P=B)))>WGXCREDITS)/, a different vulnerability than CVE-2015-8384.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

9.16%

94.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Pcre	Pcre2	10.10
Pcre	Pcre	8.34
Pcre	Pcre	8.35
Pcre	Pcre	8.36
Pcre	Pcre	8.37

References

http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2015/06/01/7Mailing List
http://www.openwall.com/lists/oss-security/2015/12/02/11Mailing List
http://www.securityfocus.com/bid/74934Broken Link, Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2016:1132Third Party Advisory
https://bugs.exim.org/show_bug.cgi?id=1636Exploit, Issue Tracking, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2015/06/01/7Mailing List
http://www.openwall.com/lists/oss-security/2015/12/02/11Mailing List
http://www.securityfocus.com/bid/74934Broken Link, Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2016:1132Third Party Advisory
https://bugs.exim.org/show_bug.cgi?id=1636Exploit, Issue Tracking, Vendor Advisory

Timeline

Published: Dec 13, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-3210?

How severe is CVE-2015-3210?

CVE-2015-3210 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 9.16% probability of exploitation in the next 30 days.

How do I fix CVE-2015-3210?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-3210?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST