CVE-2025-5351
6.5
MEDIUM
CVSS 3.1
EPSS 0.48%
Description
A flaw was found in the key export functionality of libssh. The issue occurs in the internal function responsible for converting cryptographic keys into serialized formats. During error handling, a memory structure is freed but not cleared, leading to a potential double free issue if an additional failure occurs later in the function. This condition may result in heap corruption or application instability in low-memory scenarios, posing a risk to system reliability where key export operations are performed.
How to fix CVE-2025-5351
To remediate CVE-2025-5351, upgrade the affected package to a fixed version below.
- —upgrade to 0.10.6-0+deb12u2 or later
Is CVE-2025-5351 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.10.6-0+deb12u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |