CVE-2026-73064

LOWCVSS 2.9

Description

In Mbed TLS 3.2.0 though 3.6.6 and 4.0.0 through 4.1.0, an attacker who can cause an entropy source to fail can remove or inject bytes into the start of the TLS stream. This only affects TLS 1.3 servers.

Timeline

Published:September 24th, 2026 3:17 PM

Last modified:September 24th, 2026 9:04 PM

CVSS Scoring

CVSS v3: 2.9 (LOW)

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Weaknesses (CWE)

CWE-394

References & Reports

Advisories, patches, and third-party reports

https://github.com/Mbed-TLS/mbedtls
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-07-random-generator-fault-tls-integrity/

Source: NIST NVD · Data may lag official sources by up to one minute