Misaligned Memory Accesses in `is_openvpn_protocol()`
Priority LOW 37CWE-823Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A Use of Out-of-range Pointer Offset vulnerability in sslh leads to denial of service on some architectures.This issue affects sslh before 2.2.4.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0047 40th 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-2025-29440 File Descriptor Exhaustion in sslh-select and sslh-ev triggers SEGFAULTPriority MEDIUM 44
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2025-46806
- 2026-10-03 Alias added: GHSA-9pc8-3wwf-wg5j
References
More https://github.com/yrutschle/sslh/releases/tag/v2.2.4 vulnerabilities
- TI-2025-29440 File Descriptor Exhaustion in sslh-select and sslh-ev triggers SEGFAULT CVSS 4.0HIGH 8.7
Sources
- CVE-2025-46806 · CVE Program
- CVE-2025-46806 · NVD
- FIRST EPSS
- GHSA-9pc8-3wwf-wg5j · GitHub Advisory Database · CC BY 4.0
- CVE-2025-46806 · 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