What is CVE-2026-31470?

CVE-2026-31470 is a high-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2026-04-22.

How severe is CVE-2026-31470?

High severity. CVSS v3 base score is 7.1 out of 10.

Buffer overflow in Linux

CVE-2026-31470

In the Linux kernel, the following vulnerability has been resolved: virt: tdx-guest: Fix handling of host controlled 'quote' buffer length Validate host controlled value `quote_buf->out_len` that determines how many bytes of the quote ar…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (3.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Affected products

Linux — versions f4738f56d1dc62aaba69b33702a5ab098f1b8c63, 6.7, 0
Linux Linux_kernel — versions 7.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

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)

Frequently asked questions

What is CVE-2026-31470?: CVE-2026-31470 is a high-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2026-04-22.
How severe is CVE-2026-31470?: High severity. CVSS v3 base score is 7.1 out of 10.