CVE-2020-20949

CVE-2020-20949CVE-2020-20949

st / stm32cubef0

Description

Bleichenbacher's attack on PKCS #1 v1.5 padding for RSA in STM32 cryptographic firmware library software expansion for STM32Cube (UM1924). The vulnerability can allow one to use Bleichenbacher's oracle attack to decrypt an encrypted ciphertext by making successive queries to the server using the vulnerable library, resulting in remote information disclosure.

Scoring

CVSS 5.9 ()
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Last modified2026-07-05
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.