CVE-2020-13799

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Summary

CVECVE-2020-13799
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-11-18 22:15:11 UTC
Updated2026-06-05 20:13:25 UTC
DescriptionWestern 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.

Risk And Classification

Primary CVSS: v3.1 6.8 MEDIUM from [email protected]

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

EPSS: 0.000550000 probability, percentile 0.175230000 (date 2026-06-11)

Problem Types: CWE-294 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.8MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:L/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Trustedfirmware Op-tee All All All All
Hardware Westerndigital Inand Cl Em132 - All All All
Operating System Westerndigital Inand Cl Em132 Firmware All All All All
Hardware Westerndigital Inand Ix Em132 - All All All
Operating System Westerndigital Inand Ix Em132 Firmware All All All All
Hardware Westerndigital Inand Ix Em132 Xi - All All All
Operating System Westerndigital Inand Ix Em132 Xi Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
WDC-20008 Replay Attack Vulnerabilities in RPMB Protocol Applications | Western Digital af854a3a-2127-422b-91ae-364da2661108 www.westerndigital.com Vendor Advisory
VU#231329 - Replay Protected Memory Block (RPMB) protocol does not adequately defend against replay attacks af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org Third Party Advisory, US Government Resource
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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