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CVE-2017-7186
libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read…
High7.5EPSS 5.0%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 5.0% · top 7.7% of all CVEs (3 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (10)
- https://bugs.exim.org/show_bug.cgi?id=2052 (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201710-09 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://vcs.pcre.org/pcre/code/trunk/pcre_internal.h?r1=1649&r2=1688&sortby=date (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600&r2=670&sortby=date (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490&r2=1688&sortby=date (opens in a new tab)x_refsource_CONFIRMx_transferred
- 97030 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://blogs.gentoo.org/ago/2017/03/14/libpcre-invalid-memory-read-in-match-pcre_exec-c/ (opens in a new tab)x_refsource_MISCx_transferred
- https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_ucd.c?r1=316&r2=670&sortby=date (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:2486 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-201710-25 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2017-7186)Record last updated .