File Descriptor Exhaustion in sslh-select and sslh-ev triggers SEGFAULT
Priority MEDIUM 44CWE-770Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.
Summary
A Allocation of Resources Without Limits or Throttling vulnerability in sslh allows attackers to easily exhaust the file descriptors in sslh and deny legitimate users service.This issue affects sslh before 2.2.4.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00436 38th percentileScored 2026-11-07
Fix Fixed sslh (https://github.com/yrutschle/sslh/releases/tag/v2.2.4): 2.2.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| https://github.com/yrutschle/sslh/releases/tag/v2.2.4 | sslh | ? to before 2.2.4 | 2.2.4 | Patch available | CNA |
- sslh Vendorhttps://github.com/yrutschle/sslh/releases/tag/v2.2.4 Affected ? to before 2.2.4 Fixed in 2.2.4 Patch available CNA
Remediation
- Fix · CNA sslh (https://github.com/yrutschle/sslh/releases/tag/v2.2.4) Fixed in 2.2.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
https://github.com/yrutschle/sslh/releases/tag/v2.2.4 sslh 2.2.4
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2025-29439 Misaligned Memory Accesses in `is_openvpn_protocol()`Priority LOW 37
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2025-46807
- 2026-10-03 Alias added: GHSA-5pmj-5f4j-wp6g
References
More https://github.com/yrutschle/sslh/releases/tag/v2.2.4 vulnerabilities
- TI-2025-29439 Misaligned Memory Accesses in `is_openvpn_protocol()` CVSS 4.0MEDIUM 6.9
Sources
- CVE-2025-46807 · CVE Program
- CVE-2025-46807 · NVD
- FIRST EPSS
- GHSA-5pmj-5f4j-wp6g · GitHub Advisory Database · CC BY 4.0
- CVE-2025-46807 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences