Vulnerability · Published Jun 2, 2025 · Assigned by suse
CVE-2025-46806Misaligned Memory Accesses in `is_openvpn_protocol()`
Medium 6.9
In plain English
A medium-severity security flaw in sslh from https://github.com/yrutschle/sslh/releases/tag/v2.2.4. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)6.9Medium
Exploit odds (30 days)0.5%top 59.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | sslh | no fix listed | DEBIAN-CVE-2025-46806 |
| Debian:14 | sslh | 2.3.1-1 | DEBIAN-CVE-2025-46806 |
| Ubuntu:22.04:LTS | sslh | no fix listed | UBUNTU-CVE-2025-46806 |
| Ubuntu:25.10 | sslh | no fix listed | UBUNTU-CVE-2025-46806 |
| Ubuntu:26.04:LTS | sslh | no fix listed | UBUNTU-CVE-2025-46806 |
| Ubuntu:26.10 | sslh | no fix listed | UBUNTU-CVE-2025-46806 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| https://github.com/yrutschle/sslh/releases/tag/v2.2.4 | sslh | ? – before 2.2.4 |
Weakness: CWE-823 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N