CVE-2026-25834

Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downgrade

Medium · published April 1, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
11.5
In the wild
Unconfirmed
What it is

Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downgrade.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00217 · 11.5th percentile
Published
2026-04-01T00:00Z
EPSS history
Timeline
  • 01 APR 00:00Z
    Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downgrade
    cvelistv5