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CVE-2021-22432

31
FAUCET Score

CVE-2021-22432 is a critical out-of-bounds access vulnerability affecting Huawei EMUI, HarmonyOS, and Magic UI when configuring permission isolation. With a CVSS score of 9.8, this network-exploitable flaw requires no user interaction and can lead to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is currently no public exploit code available, and it is not listed on CISA's KEV catalog, nor has it garnered significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
11.0.0CPE matchmatch criteria
cpe:2.3:o:huawei:emui:11.0.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:o:huawei:harmonyos:2.0:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:o:huawei:magic_ui:4.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.89%
Probability of exploitation in next 30 days
EPSS Percentile
55.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0089 is in the 40th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

consumer.huawei.com / en/support/bulletin/2021/6
Vendor Advisory
device.harmonyos.com / en/docs/security/update/security-bulletins-phones-202107-0000001170634565
Vendor Advisory