The memory management module has the logic bypass vulnerability.

published 2022-11-09 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-33506

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 46%
public exploits: 0; none known

The memory management module has the logic bypass vulnerability. Successful exploitation of this vulnerability may affect data confidentiality.

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 18 mo ago (2025-05-01)

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Huawei HarmonyOS
Huawei EMUI

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality

References

consumer.huawei.com /en/support/bulletin/2022/11/
vendor-advisory
device.harmonyos.com /en/docs/security/update/security-bulletins-phones-202211-0000001441016433
vendor-advisory

Sources

CVE List CVE-2021-46852
NVD CVE-2021-46852

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Summary