In PCRE 8.41, the OP_KETRMAX feature in the match function in pcre_exec.c allows stack exhaustion (uncontrolled recursion) when processing a crafted regular expression.
CVE-2017-11164
HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 7.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 86.2%
- KEV
- Not listed
Published
July 11, 2017
Last Modified
May 13, 2026
References (10)
- cve@mitrehttp://openwall.com/lists/oss-security/2017/07/11/3
- cve@mitrehttp://www.openwall.com/lists/oss-security/2023/04/11/1
- cve@mitrehttp://www.openwall.com/lists/oss-security/2023/04/12/1
- cve@mitrehttp://www.securityfocus.com/bid/99575
- cve@mitrehttps://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
- af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2017/07/11/3
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/04/11/1
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/04/12/1
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/99575
- af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
Data Freshness Timeline
(refreshed 9× in last 7d / 38× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 13:42 UTCEPSS rescore
- 2026-07-06 16:24 UTCEPSS rescore
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- 2026-06-23 03:30 UTCOSV refresh
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- 2026-06-18 17:50 UTCEPSS rescore
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- 2026-06-06 13:45 UTCEPSS rescore
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- 2026-06-06 00:23 UTCOSV refresh
- 2026-06-05 22:44 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
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- 2026-05-22 11:53 UTCEG score recompute
- 2026-05-22 11:53 UTCGHSA enrichment
- 2026-05-20 22:37 UTCEPSS rescore
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- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
Frequently asked(5)
What is CVE-2017-11164?
CVE-2017-11164 is a high vulnerability published on July 11, 2017. In PCRE 8.41, the OPKETRMAX feature in the match function in pcreexec.c allows stack exhaustion (uncontrolled recursion) when processing a crafted regular expression.
When was CVE-2017-11164 disclosed?
CVE-2017-11164 was first published in the National Vulnerability Database on July 11, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-11164 actively exploited?
CVE-2017-11164 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 86.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-11164?
CVE-2017-11164 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2017-11164?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-11164, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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