What’s Vulnerable › Vulnerabilities

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 ...

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-10-14 · updated 2026-06-17
• Weakness: CWE-787

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 products

• OpenHarmony: from 3.1 through 3.1.2
• Openharmony: from 3.0 through 3.0.6

References

• https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2022-10.md
• https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2022-10.md

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