A component of the HarmonyOS has a Privilege Dropping / Lowering Errors vulnerability.

published 2021-06-30 5y ago modified 2026-06-17 4mo ago also EUVD-2021-9472

cvss: 7.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 4%
public exploits: 0; none known

A component of the HarmonyOS has a Privilege Dropping / Lowering Errors vulnerability. Local attackers may exploit this vulnerability to obtain Kernel space read/write capability.

Is CVE-2021-22326 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD	2.0	6.6	AV:L/AC:L/Au:N/C:C/I:C/A:N

Affected products

Huawei HarmonyOS

Classification

Weakness

CWE-269 Improper Privilege Management

References

device.harmonyos.com /cn/docs/security/update/security-bulletins-202107-0000001123874808
vendor-advisory

Sources

CVE List CVE-2021-22326
NVD CVE-2021-22326

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.