What’s Vulnerable › Vulnerabilities

CVE-2017-7186

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-03-20 · updated 2026-06-17
• Weakness: CWE-119

Description

libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.

Affected products

• Pcre: 8.40
• PCRE2: 10.23

References

• http://www.securityfocus.com/bid/97030
• https://access.redhat.com/errata/RHSA-2018:2486
• https://blogs.gentoo.org/ago/2017/03/14/libpcre-invalid-memory-read-in-match-pcre_exec-c/
• https://bugs.exim.org/show_bug.cgi?id=2052
• https://security.gentoo.org/glsa/201710-09
• https://security.gentoo.org/glsa/201710-25
• https://vcs.pcre.org/pcre/code/trunk/pcre_internal.h?r1=1649&r2=1688&sortby=date
• https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490&r2=1688&sortby=date
• https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600&r2=670&sortby=date
• https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_ucd.c?r1=316&r2=670&sortby=date
• http://www.securityfocus.com/bid/97030
• https://access.redhat.com/errata/RHSA-2018:2486

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