Cyber Resilience

CVE-2021-46891

Critical

Published: 05 July 2023

Published
05 July 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0011 29.4th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-46891 is a critical-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability in Huawei Emui. Its CVSS base score is 9.8 (Critical).

Operationally, ranked at the 29.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Vulnerability of incomplete read and write permission verification in the GPU module. Successful exploitation of this vulnerability may affect service confidentiality, integrity, and availability.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

huawei
emui
12.0.0
huawei
harmonyos
2.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-863 CWE-200

Defining permitted attribute values and auditing modifications reduces the chance of incorrect authorization outcomes due to tampered or missing labels.

addresses: CWE-863 CWE-200

Ensures authorization decisions for external system use are correctly implemented and enforced.

addresses: CWE-863 CWE-200

It assists users in evaluating and applying correct authorization decisions when sharing information with external partners.

addresses: CWE-200 CWE-863

Session auditing enables detection of unauthorized exposure or access to sensitive information during user activities.

addresses: CWE-863 CWE-200

Drives review and correction of flawed authorization logic applied to organizational data.

addresses: CWE-200 CWE-863

Annual reviews and proposal scrutiny detect and block matching programs that would expose sensitive data to unauthorized recipients or systems.

addresses: CWE-863 CWE-200

Restricts processing strictly to documented authorized uses, mitigating incorrect authorization decisions for sensitive data.

addresses: CWE-863 CWE-200

Addresses incorrect authorization by requiring independent verification of results and an opportunity to contest before any adverse action is taken.

References