What is CVE-2026-31707?

CVE-2026-31707 is a high-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2026-05-01.

How severe is CVE-2026-31707?

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

Buffer overflow in Linux

CVE-2026-31707

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate response sizes in ipc_validate_msg() ipc_validate_msg() computes the expected message size for each response type by adding (or multiplying) attacker-con…

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 6.12.84, 7.1-rc1, 0626e6641f6b467447c81dd7678a69c66f7746cf
Linux Linux_kernel

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

Frequently asked questions

What is CVE-2026-31707?: CVE-2026-31707 is a high-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2026-05-01.
How severe is CVE-2026-31707?: High severity. CVSS v3 base score is 7.1 out of 10.