CVE-2016-9954
UnknownEPSS 2.40%
Last modified
CVE-2016-9954 is a vulnerability of currently unknown severity. The backtrack compilation code in the Irregex package (aka IrRegular Expressions) before 0.9.6 for Scheme allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression with a repeating pattern.. EPSS estimates a 2.40% chance of exploitation in the next 30 days.
Description
The backtrack compilation code in the Irregex package (aka IrRegular Expressions) before 0.9.6 for Scheme allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression with a repeating pattern.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Irregex Project | Irregex | <= 0.9.5 |
References
- http://www.openwall.com/lists/oss-security/2016/12/15/8Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/94942Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1413990Issue Tracking, Third Party Advisory, VDB Entry
- https://github.com/ashinn/irregex/commit/a16ffc86eca15fca9e40607d41de3cea9cf868f1Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/12/15/8Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/94942Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1413990Issue Tracking, Third Party Advisory, VDB Entry
- https://github.com/ashinn/irregex/commit/a16ffc86eca15fca9e40607d41de3cea9cf868f1Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-9954?
The backtrack compilation code in the Irregex package (aka IrRegular Expressions) before 0.9.6 for Scheme allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression with a repeating pattern.
How severe is CVE-2016-9954?
Severity scoring for CVE-2016-9954 is pending analysis. The EPSS model estimates a 2.40% probability of exploitation in the next 30 days.
How do I fix CVE-2016-9954?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2016-9954?
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