CVE-2025-49087
3.7
LOW
CVSS 3.1
EPSS 0.43%
Description
In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing discrepancy in block cipher padding removal allows an attacker to recover the plaintext when PKCS#7 padding mode is used.
How to fix CVE-2025-49087
To remediate CVE-2025-49087, upgrade the affected package to a fixed version below.
- Alpine/mbedtls—upgrade to 3.6.4-r0 or later
- Debian/mbedtls—upgrade to 3.6.4-1 or later
Is CVE-2025-49087 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.6.4-r0
- from 0, < 3.6.4-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |