Name: CVE-2026-34874: NULL Pointer Dereference
Creator: Rapid7
Published: 2026-04-01T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-34874, CWE-476, CVSS 7.5, EPSS 0.00488

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.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade mbedtls	Sep 21, 2026	Apr 1, 2026
Freebsd	—	Upgrade mbedtls3Upgrade mbedtls4	Apr 14, 2026	Apr 10, 2026

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CVSS Details

Covered by Rapid7

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