Back
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…
High7.5EPSS 2.4%
- Published
- Updated
- Reserved
- Assigned by
- debian
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.
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)
- 2.4% · top 16% of all CVEs (2 Nov 2026)
Loading the EPSS history…
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 (4)
- [oss-security] 20161215 Re: CVE Request: IrRegular Expressions resource exhaustion in regex compilation [was: Re: CVE Request: resource exhaustion in regex expression handling in WebKit] (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://github.com/ashinn/irregex/commit/a16ffc86eca15fca9e40607d41de3cea9cf868f1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 94942 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1413990 (opens in a new tab)x_refsource_CONFIRMx_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)
Record last updated .