Use After Free in Huawei Emui
CVE-2021-46894
Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (37.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Huawei Emui — versions 12.0.0
- Huawei Harmonyos — versions 2.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- consumer.huawei.com/en/support/bulletin/2023/7/ (Vendor Advisory)
- device.harmonyos.com/en/docs/security/update/security-bulletins-202307-00000015… (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-46894?
- CVE-2021-46894 is a critical-severity vulnerability in Huawei Emui, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2023-07-06.
- How severe is CVE-2021-46894?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-46894 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.