CVE-2023-20577EPSS p4.5%

CVE-2023-20577CVE-2023-20577

Description

A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.

Scoring

CVSS 7.4 ()
VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.16% probability of exploitation · percentile 4.5% · 2026-10-05T12:00:23Z
Last modified2026-09-04
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.