What’s Vulnerable › Vulnerabilities

CVE-2017-6004

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-02-16 · updated 2026-06-17
• Weakness: CWE-125

Description

The compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE through 8.x before revision 1680 (e.g., the PHP 7.1.1 bundled version) allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted regular expression.

Affected products

• Pcre: through 8.38

References

• http://www.securityfocus.com/bid/96295
• http://www.securitytracker.com/id/1037850
• https://access.redhat.com/errata/RHSA-2018:2486
• https://bugs.exim.org/show_bug.cgi?id=2035
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
• https://security.gentoo.org/glsa/201706-11
• https://vcs.pcre.org/pcre/code/trunk/pcre_jit_compile.c?r1=1676&r2=1680&view=patch
• http://www.securityfocus.com/bid/96295
• http://www.securitytracker.com/id/1037850
• https://access.redhat.com/errata/RHSA-2018:2486
• https://bugs.exim.org/show_bug.cgi?id=2035

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