How severe is CVE-2020-13799?

CVE-2020-13799 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-13799 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13799?

CVE-2020-13799 primarily affects Westerndigital Inand Cl Em132 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-13799?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-13799 published?

CVE-2020-13799 was published on 2020-11-18 and last updated on 2026-06-17.

CVE-2020-13799

CVE-2020-13799 is a medium-severity vulnerability in Westerndigital Inand Cl Em132 Firmware with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-294.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-294
Affected product: Westerndigital Inand Cl Em132 Firmware
Published: 2020-11-18
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-13799?: 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.
How severe is CVE-2020-13799?: CVE-2020-13799 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-13799 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13799?: CVE-2020-13799 primarily affects Westerndigital Inand Cl Em132 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-13799?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-13799 published?: CVE-2020-13799 was published on 2020-11-18 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:westerndigital:inand_cl_em132_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:westerndigital:inand_ix_em132_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:westerndigital:inand_ix_em132_xi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:*

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