What is CVE-2026-31553?

CVE-2026-31553 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-04-24.

How severe is CVE-2026-31553?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Linux

CVE-2026-31553

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix the descriptor address in __kvm_at_swap_desc() Using "(u64 __user *)hva + offset" to get the virtual addresses of S1/S2 descriptors looks really wrong, i…

EPSS: 0.000 (4.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Linux — versions f6927b41d57390c597a126063e2e518911976878, 6.19, 0

References

git.kernel.org/stable/c/4307e05e568782fc92eff651b09ee5dee88a058d
git.kernel.org/stable/c/0496acc42fb51eee040b5170cec05cec41385540

Frequently asked questions

What is CVE-2026-31553?: CVE-2026-31553 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-04-24.
How severe is CVE-2026-31553?: High severity. CVSS v3 base score is 8.8 out of 10.