A stack overflow re2c 2.2 exists due to infinite recursion issues in src/dfa/dead_rules.cc.
Priority MEDIUM 45CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
A stack overflow re2c 2.2 exists due to infinite recursion issues in src/dfa/dead_rules.cc.
Why it matters now
EPSS 0.01588 75th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-23901
- 2026-10-03 Alias added: GHSA-37h7-52mc-gc3m
References
More Re2c vulnerabilities
- TI-2020-09620 re2c 1.3 has a heap-based buffer overflow in Scanner::fill in parse/scanner.cc via a long lexeme. CVSS 3.1HIGH 7.8
- TI-2018-15194 re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags. CVSS 3.1MEDIUM 5.5
Sources
- CVE-2022-23901 · CVE Program
- CVE-2022-23901 · NVD
- FIRST EPSS
- GHSA-37h7-52mc-gc3m · GitHub Advisory Database · CC BY 4.0
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