Multiple buffer overflows in libmcrypt before 2.5.5 allow attackers to cause a denial of service (crash).
Priority LOW 36Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Multiple buffer overflows in libmcrypt before 2.5.5 allow attackers to cause a denial of service (crash).
Why it matters now
EPSS 0.01726 77th percentileScored 2026-11-07
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
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mcrypt:libmcrypt:2.5.1_r4:*:*:*:*:*:*:* | 2.5.1_r4 | Vulnerable | Mcrypt |
| cpe:2.3:a:mcrypt:libmcrypt:2.5.2:*:*:*:*:*:*:* | 2.5.2 | Vulnerable | Mcrypt |
| cpe:2.3:a:mcrypt:libmcrypt:2.5.3:*:*:*:*:*:*:* | 2.5.3 | Vulnerable | Mcrypt |
| cpe:2.3:a:mcrypt:libmcrypt:2.5_.0:*:*:*:*:*:*:* | 2.5_.0 | Vulnerable | Mcrypt |
- cpe:2.3:a:mcrypt:libmcrypt:2.5.1_r4:*:*:*:*:*:*:* Versions 2.5.1_r4 Vulnerable ·Mcrypt
- cpe:2.3:a:mcrypt:libmcrypt:2.5.2:*:*:*:*:*:*:* Versions 2.5.2 Vulnerable ·Mcrypt
- cpe:2.3:a:mcrypt:libmcrypt:2.5.3:*:*:*:*:*:*:* Versions 2.5.3 Vulnerable ·Mcrypt
- cpe:2.3:a:mcrypt:libmcrypt:2.5_.0:*:*:*:*:*:*:* Versions 2.5_.0 Vulnerable ·Mcrypt
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2003-0031
- 2026-10-03 Alias added: GHSA-9m5c-xf3g-pwxw
References
Patch 1
Advisory 1
More Mcrypt Libmcrypt vulnerabilities
- TI-2003-00028 Memory leak in libmcrypt before 2.5.5 allows attackers to cause a denial of service… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2003-0031 · CVE Program
- CVE-2003-0031 · NVD
- FIRST EPSS
- GHSA-9m5c-xf3g-pwxw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences