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CVE-2026-31633

critical · 9.8

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix integer overflow in rxgk_verify_response() In rxgk_verify_response(), there's a potential integer overflow due to rounding up token_len before checking it, thereby allowing the length check to be bypassed. Fix this by checking the unrounded value against len too (len is limited as the response must fit in a single UDP packet).

9.8
CVSS
0.5%
EPSS (exploit prob.)
40th
EPSS percentile
2026-04-24
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-190

Affected products

VendorProductAffected versions
linuxlinux_kernel>= 6.16.1, < 6.18.23
linuxlinux_kernel>= 6.19, < 6.19.13
linuxlinux_kernel6.16
linuxlinux_kernel7.0
linuxlinux_kernel7.0
linuxlinux_kernel7.0
linuxlinux_kernel7.0
linuxlinux_kernel7.0
linuxlinux_kernel7.0
linuxlinux_kernel7.0

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-31633