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CVE-2023-4566

21
FAUCET Score

CVE-2023-4566 is a high-severity vulnerability affecting Huawei EMUI and HarmonyOS, stemming from inaccurate trust relationships in distributed scenarios. With a CVSS score of 7.5, this network-exploitable flaw requires no user interaction and could lead to a significant impact on service confidentiality. While no public exploit code or active exploitation has been observed, and community discussion is minimal, organizations should still address this vulnerability due to its potential for high impact.

Impacted Technologies

VendorProductVersion(s)CPE
13.0.0CPE matchmatch criteria
cpe:2.3:o:huawei:emui:13.0.0:*:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:o:huawei:harmonyos:3.0.0:*:*:*:*:*:*:*
3.1.0CPE matchmatch criteria
cpe:2.3:o:huawei:harmonyos:3.1.0:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:o:huawei:harmonyos:4.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 6th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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/2024/1
Vendor Advisory
device.harmonyos.com / en/docs/security/update/security-bulletins-202401-0000001799925977
Vendor Advisory