Out-of-bounds Read in Linux

CVE-2026-22984

In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-bounds reads in handle_auth_done() Perform an explicit bounds check on payload_len to avoid a possible out-of-bounds access in the callout. [ idryomov: changelog ]

Vulnerability class: Buffer Overflow

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 (30.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.7% 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-2026-22984: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

  • Linux — versions cd1a677cad994021b19665ed476aea63f5d54f31, 5.11, 0
  • Linux Kernel — versions 6.19

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-22984?
CVE-2026-22984 is a critical-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2026-01-23.
How severe is CVE-2026-22984?
Critical severity. CVSS v3 base score is 9.8 out of 10.