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Vulnerability record · CVE-2020-13799 · published 18 November 2020

CVE-2020-13799: Westerndigital inand cl em132 firmware authentication bypass by capture-replay vulnerability

Westerndigital · Inand Cl Em132 Firmware

Western Digital has identified a security vulnerability in the Replay Protected Memory Block (RPMB) protocol as specified in multiple standards for storage device interfaces, including all versions of eMMC, UFS, and NVMe. The RPMB protocol is specified by industry standards bodies and is implemented by storage devices from multiple vendors to assist host systems in securing trusted firmware. Several scenarios have been identified in which the RPMB state may be affected by an attacker without the knowledge of the trusted component that uses the RPMB feature.

6.8 CVSS 3.1 Medium EPSS 0.30% · top 79.7% CWE-294 · Authentication bypass by capture-replay
6.8CVSS 3.1 base score, v2 4.6
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

Western Digital has identified a security vulnerability in the Replay Protected Memory Block (RPMB) protocol as specified in multiple standards for storage device interfaces, including all versions of eMMC, UFS, and NVMe. The RPMB protocol is specified by industry standards bodies and is implemented by storage devices from multiple vendors to assist host systems in securing trusted firmware. Several scenarios have been identified in which the RPMB state may be affected by an attacker without the knowledge of the trusted component that uses the RPMB feature.

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

Affected products

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

References

LinkTags
https://www.kb.cert.org/vuls/id/231329 Third Party AdvisoryUS Government Resource
https://www.kb.cert.org/vuls/id/231329 Third Party AdvisoryUS Government Resource
https://www.kb.cert.org/vuls/id/231329 Third Party AdvisoryUS Government Resource
https://www.kb.cert.org/vuls/id/231329 Third Party AdvisoryUS Government Resource
https://www.westerndigital.com/support/productsecurity/wdc-20008-replay-attack-vulnerabilities-rpmb-protocol-application Vendor Advisory
https://www.kb.cert.org/vuls/id/231329 Third Party AdvisoryUS Government Resource
https://www.kb.cert.org/vuls/id/231329 Third Party AdvisoryUS Government Resource
https://www.kb.cert.org/vuls/id/231329 Third Party AdvisoryUS Government Resource
https://www.kb.cert.org/vuls/id/231329 Third Party AdvisoryUS Government Resource
https://www.westerndigital.com/support/productsecurity/wdc-20008-replay-attack-vulnerabilities-rpmb-protocol-application Vendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2020-13799), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.