CVEvulnerability

CVE-2026-34874

7.5 HIGH Published 2026-04-01 Modified 2026-06-17 Official page ↗

Status: Analyzed
Published: 2026-04-01
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses: CWE-476

Description

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.

Affected configurations

• trustedfirmware mbed tls (>= 3.5.0 < 3.6.6) • trustedfirmware mbed tls 4.0.0

Weakness · CWE (1)

CWE-476 NULL Pointer Dereference weakness

References

https://mbed-tls.readthedocs.io/en/latest/security-advisories/ Vendor Advisory
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-null-pointer-dereference-x509/ Vendor Advisory

CVE-2026-34874

Description

Affected configurations

Related

Weakness · CWE (1)

References