Is CVE-2021-46894 actively exploited?

No active exploitation of CVE-2021-46894 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-46894 be exploited remotely?

Yes. CVE-2021-46894 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-46894?

CVE-2021-46894 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-46894

CWE-269Published: July 6, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation.

NVD Source

Risk Analysis

A Use After Free (UAF) vulnerability in the uinput module can lead to kernel privilege escalation. This critical flaw allows an attacker to gain elevated control over the system.

No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable with low complexity.

Recommended Action

Apply the latest security updates provided by Huawei for the affected EMUI and HarmonyOS versions.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-46894 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.