CVE-2022-41686

Out-of-bound memory read and write in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could read out-of-bound memory leading sensitive to information disclosure. The proc ...

MEDIUM
4.4
CVSS Score
Published: October 14, 2022 at 02:40 PM UTC
Updated: June 17, 2026 at 05:03 AM UTC
1 product affected across 1 vendorOpenharmony

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have an Out-of-bound memory read and write vulnerability in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could read out-of-bound memory leading sensitive to information disclosure. The processes with system user UID run on the device would be able to write out-of-bound memory which could lead to unspecified memory corruption.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.0 ≤ v ≤ 3.0.63.1 ≤ v ≤ 3.1.2OpenHarmony-v3.0.x-LTS ≤ v ≤ 3.0.6OpenHarmony-v3.1.x-Release ≤ v ≤ 3.1.23.0.x-LTS3.1.x-Release

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787CWE-125

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