What is CVE-2026-31705?

CVE-2026-31705 is a critical-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-05-01.

How severe is CVE-2026-31705?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Linux

CVE-2026-31705

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds write in smb2_get_ea() EA alignment smb2_get_ea() applies 4-byte alignment padding via memset() after writing each EA entry. The bounds check on…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (23.3th percentile) — read the EPSS interpretation.

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.

Affected products

Linux — versions 6.6.136, 6.12.84, 7.1-rc1
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 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67

Frequently asked questions

What is CVE-2026-31705?: CVE-2026-31705 is a critical-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-05-01.
How severe is CVE-2026-31705?: Critical severity. CVSS v3 base score is 9.8 out of 10.