CVE-2021-46840 — CRITICAL (9.1)

Vulnerability Description

The HW_KEYMASTER module has an out-of-bounds access vulnerability in parameter set verification.Successful exploitation of this vulnerability may cause malicious construction of data, which results in out-of-bounds access.

CVSS Score

9.1

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Huawei	Emui	11.0.1
Huawei	Harmonyos	2.0

Related Weaknesses (CWE)

CWE-125

References

https://consumer.huawei.com/en/support/bulletin/2022/10/Vendor Advisory
https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-2Vendor Advisory
https://consumer.huawei.com/en/support/bulletin/2022/10/Vendor Advisory
https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-2Vendor Advisory

FAQ

What is CVE-2021-46840?

CVE-2021-46840 is a vulnerability with a CVSS score of 9.1 (CRITICAL). The HW_KEYMASTER module has an out-of-bounds access vulnerability in parameter set verification.Successful exploitation of this vulnerability may cause malicious construction of data, which results in...

How severe is CVE-2021-46840?

CVE-2021-46840 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-46840?

Check the references section above for vendor advisories and patch information. Affected products include: Huawei Emui, Huawei Harmonyos.