CVE-2026-34874

An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0

High · published April 1, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
41.0
In the wild
Unconfirmed
What it is

An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0. There is a NULL pointer dereference in distinguished name parsing that allows an attacker to write to address 0.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00488 · 41.0th percentile
Published
2026-04-01T00:00Z
EPSS history
Timeline
  • 01 APR 00:00Z
    An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0
    cvelistv5