Vulnerability in Linux Kernel

CVE-2023-2163

Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.036 (89.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-2163: held from 0.037 to 0.036.

EPSS over last 30 days · oldest: 0.037 · newest: 0.036 · change: -0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-2163?
CVE-2023-2163 is a critical-severity vulnerability in Linux Kernel, classified under Incorrect Calculation. CVSS score: 10.0/10. Published 2023-09-20.
How severe is CVE-2023-2163?
Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2023-2163 known to be exploited?
17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.