Vulnerability in Linux Kernel
CVE-2021-31440
This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.11.15. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vuln…
EPSS: 0.007 (71.7th 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 5.11.15
Weakness classification (CWE)
Public proof-of-concept exploits
- ARPSyndicate/cvemon
- Al1ex/LinuxEelvation
- ChoKyuWon/exploit_
- HaxorSecInfec/autoroot.sh
- JlSakuya/Linux-Privilege-Escalation-Exploits
- XiaozaYa/CVE-Recording
- a-roshbaik/Linux-Privilege-Escalation-Exploits
- adavarski/HomeLab-Proxmox-k8s-DevSecOps-playground
- adavarski/HomeLab-k8s-DevSecOps-playground
- bsauce/kernel-exploit-factory
References
- www.zerodayinitiative.com/advisories/ZDI-21-503/ (x_refsource_MISC)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (x_refsource_MISC)
- security.netapp.com/advisory/ntap-20210706-0003/ (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2021-31440?
- CVE-2021-31440 is a high-severity vulnerability in Linux Kernel, classified under Incorrect Calculation. CVSS score: 8.8/10. Published 2021-05-21.
- How severe is CVE-2021-31440?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-31440 known to be exploited?
- 16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.