HOMEVULNERABILITIESCVE-2015-3210
CRITICAL

CVE-2015-3210

CWE-787Published: December 13, 2016· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2015-3210 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

pcre2 product(s)
pcre2pcre
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://rhn.redhat.com/errata/RHSA-2016-2750.html
ADVISORYhttp://www.securityfocus.com/bid/74934
ADVISORYhttps://access.redhat.com/errata/RHSA-2016:1132
ADVISORYhttps://bugs.exim.org/show_bug.cgi?id=1636
ADVISORYhttp://rhn.redhat.com/errata/RHSA-2016-2750.html
ADVISORYhttp://www.securityfocus.com/bid/74934
ADVISORYhttps://access.redhat.com/errata/RHSA-2016:1132
ADVISORYhttps://bugs.exim.org/show_bug.cgi?id=1636

All References (12)

→
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

Quick Facts

CVE IDCVE-2015-3210
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-787
CISA KEVNo
Affected1 vendor(s)
PublishedDec 13, 2016

Related CVEs (CWE-787)

CVE-2002-2227
10.0
CVE-2012-3957
10.0
CVE-2009-2466
10.0
CVE-2026-42369
10.0
CVE-2004-0978
10.0
CVE-2013-5610
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2015-3210 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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