What is CVE-2026-31570?

CVE-2026-31570 is a high-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2026-04-24.

How severe is CVE-2026-31570?

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

Out-of-bounds Read in Linux

CVE-2026-31570

In the Linux kernel, the following vulnerability has been resolved: can: gw: fix OOB heap access in cgw_csum_crc8_rel() cgw_csum_crc8_rel() correctly computes bounds-safe indices via calc_idx(): int from = calc_idx(crc8->from_idx, c…

Vulnerability class: Buffer Overflow

EPSS: 0.003 (17.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Linux — versions 456a8a646b2563438c16a9b27decf9aa717f1ebb, 5.4, 0
Linux Linux_kernel — versions 5.4, 7.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-31570?: CVE-2026-31570 is a high-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2026-04-24.
How severe is CVE-2026-31570?: High severity. CVSS v3 base score is 8.8 out of 10.