CVE-2017-11164
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.08%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.08% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-674
- Affected
- pcre/pcre
- Source
- cve@mitre.org
EPSS 3.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://openwall.com/lists/oss-security/2017/07/11/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/04/11/1
- http://www.openwall.com/lists/oss-security/2023/04/12/1
- http://www.securityfocus.com/bid/99575
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
- http://openwall.com/lists/oss-security/2017/07/11/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/04/11/1
- http://www.openwall.com/lists/oss-security/2023/04/12/1
- http://www.securityfocus.com/bid/99575
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.