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Vulnerability record · CVE-2020-12355 · published 12 November 2020

CVE-2020-12355: Intel trusted execution engine authentication bypass by capture-replay vulnerability

Intel · Trusted Execution Engine

Authentication bypass by capture-replay in RPMB protocol message authentication subsystem in Intel(R) TXE versions before 4.0.30 may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

6.8 CVSS 3.1 Medium EPSS 0.40% · top 67.8% CWE-294 · Authentication bypass by capture-replay
6.8CVSS 3.1 base score, v2 4.6
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

Authentication bypass by capture-replay in RPMB protocol message authentication subsystem in Intel(R) TXE versions before 4.0.30 may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://security.netapp.com/advisory/ntap-20201113-0005/ Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00391 Vendor Advisory
https://security.netapp.com/advisory/ntap-20201113-0005/ Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00391 Vendor Advisory
https://www.kb.cert.org/vuls/id/231329

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2020-8744Intel converged security and management engine vulnerabilityImproper initialization in subsystem for Intel(R) CSME versions before12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25, Intel(R) TXE versions before 4…EPSS 0.36%7.8CVE-2020-8750Intel trusted execution engine use after free vulnerabilityUse after free in Kernel Mode Driver for Intel(R) TXE versions before 3.1.80 and 4.0.30 may allow an authenticated user to potentially enable escalat…EPSS 0.35%4.4CVE-2020-0545Intel converged security management engine firmware integer overflow vulnerabilityInteger overflow in subsystem for Intel(R) CSME versions before 11.8.77, 11.12.77, 11.22.77 and Intel(R) TXE versions before 3.1.75, 4.0.25 and Intel…EPSS 0.41%9.8CVE-2023-23397Microsoft Outlook improper input validation privilege escalationCVE-2023-23397 is a critical elevation of privilege flaw in Microsoft Outlook caused by improper input validation and an authentication bypass by cap…KEVEPSS 97%analysed

Source: NIST National Vulnerability Database (record CVE-2020-12355), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.