PT-2020-4742 · Intel · Intel Txe

Published 2020-11-10 · Updated 2025-11-04 · CVE-2020-12355

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Intel TXE versions prior to 4.0.30

Description: The issue is related to insufficient authentication in the RPMB protocol message authentication subsystem of Intel Trusted Execution Engine (TXE) firmware. It may allow an attacker to bypass authentication through capture-replay, potentially enabling privilege escalation via physical access.

Recommendations: For Intel TXE versions prior to 4.0.30, update to version 4.0.30 or later to resolve the issue.

Fix

Improper Authentication

Weakness Enumeration

CWE-294

CWE-287

Related Identifiers

BDU:2020-05294

CVE-2020-12355

Affected Products

Intel Txe

References · 8

• https://osv.dev/vulnerability/CVE-2020-12355 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-12355 · Security Note
• https://intel.com/content/www/us/en/security-center/advisory/intel-sa-00391 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-05294 · Security Note
• https://t.me/cveNotify/141713 · Telegram Post
• https://security.netapp.com/advisory/ntap-20201113-0005 · Note
• https://intel.com/content/www/us/en/security-center/advisory/intel-sa-00391.html · Note
• https://kb.cert.org/vuls/id/231329 · Note