HMailServer 5.3.x and prior: Memory Corruption which could cause DOS
Priority LOW 28CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
HMailServer 5.3.x and prior: Memory Corruption which could cause DOS
Why it matters now
EPSS 0.00886 59th 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
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hmailserver:hmailserver:*:*:*:*:*:*:*:* | up to 5.3.4 | Vulnerable | Hmailserver |
- cpe:2.3:a:hmailserver:hmailserver:*:*:*:*:*:*:*:* Versions up to 5.3.4 Vulnerable ·Hmailserver
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-5571
- 2026-10-03 Alias added: GHSA-4h2c-7653-598f
References
More Hmailserver vulnerabilities
- TI-2025-32547 An issue in hMailServer v.5.8.6 allows a local attacker to obtain sensitive information… CVSS 3.1MEDIUM 5.1
- TI-2025-32549 Use of hardcoded cryptographic key in Encryption.cs in hMailServer 5.8.6 and 5.6.9-beta… CVSS 3.1MEDIUM 4.6
- TI-2025-32548 Use of hardcoded cryptographic key in BlowFish.cpp in hMailServer 5.8.6 and 5.6.9-beta… CVSS 3.1MEDIUM 4.6
- TI-2008-03520 Unspecified vulnerability in the IMAP server in hMailServer 4.4.1 allows remote… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2013-5571 · CVE Program
- CVE-2013-5571 · NVD
- FIRST EPSS
- GHSA-4h2c-7653-598f · 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