Critical 9.8Published May 27, 2026

CVE-2026-46039rxgk: Fix potential integer overflow in length check

Updated under an hour ago (Oct 26, 2026, 9:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: rxgk: Fix potential integer overflow in length check Fix potential integer overflow in rxgk_extract_token() when checking the length of the ticket. Rather than rounding up the value to be tested (which might overflow), round down the size of the available data.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 2429a197648178cd4dc930a9d87c13c547460564 before 43222ac484f93b3ec2d240a7575e1cedd31f5fa4; 2429a197648178cd4dc930a9d87c13c547460564 builds before 183d37f12d1c8ed24a5bfc7addad05510da22a94; from 2429a197648178cd4dc930a9d87c13c547460564 before 6929350080f4da292d111a3b33e53138fee51cec; 71571e187106631a8127f2dde780f35caa358d33; from 6.16.9 before 6.17	CNA record
linux linux_kernel linux:linux_kernel	from 6.16.9 before 6.17; from 6.17.1 before 6.18.27; from 6.19 before 7.0.4; 6.17; 6.17	NVD

References

References

https://git.kernel.org/stable/c/43222ac484f93b3ec2d240a7575e1cedd31f5fa4	patch
https://git.kernel.org/stable/c/183d37f12d1c8ed24a5bfc7addad05510da22a94	patch
https://git.kernel.org/stable/c/6929350080f4da292d111a3b33e53138fee51cec	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.