Vulnerability in Linux Kernel
CVE-2021-34866
This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.14-rc3. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vul…
EPSS: 0.001 (32.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Linux Kernel — versions 5.14-rc3
Weakness classification (CWE)
Public proof-of-concept exploits
- ARPSyndicate/cvemon
- hardenedvault/ved
- kdn111/linux-kernel-exploitation
- khanhdn111/linux-kernel-exploitation
- khanhdz-06/linux-kernel-exploitation
- khanhdz191/linux-kernel-exploitation
- khanhhdz/linux-kernel-exploitation
- khanhhdz06/linux-kernel-exploitation
- khanhnd123/linux-kernel-exploitation
- khnhdz/linux-kernel-exploitation
References
- www.zerodayinitiative.com/advisories/ZDI-21-1148/ (x_refsource_MISC)
- security.netapp.com/advisory/ntap-20220217-0008/ (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2021-34866?
- CVE-2021-34866 is a high-severity vulnerability in Linux Kernel, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 8.8/10. Published 2022-01-25.
- How severe is CVE-2021-34866?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-34866 known to be exploited?
- 16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.