What is CVE-2026-31693?

CVE-2026-31693 is a high-severity vulnerability in Linux, classified under Use of Uninitialized Resource. CVSS score: 7.8/10. Published 2026-04-30.

How severe is CVE-2026-31693?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Linux

CVE-2026-31693

In the Linux kernel, the following vulnerability has been resolved: cifs: some missing initializations on replay In several places in the code, we have a label to signify the start of the code where a request can be replayed if necessary…

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

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 7.0, 433042a91f9373241307725b52de573933ffedbf, 6.12.75
Linux Linux_kernel — versions 6.8

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

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)

Frequently asked questions

What is CVE-2026-31693?: CVE-2026-31693 is a high-severity vulnerability in Linux, classified under Use of Uninitialized Resource. CVSS score: 7.8/10. Published 2026-04-30.
How severe is CVE-2026-31693?: High severity. CVSS v3 base score is 7.8 out of 10.