Critical severity · published May 27, 2026
CVE-2026-46039
rxgk: Fix potential integer overflow in length check
9.8
CVSS
0.4%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
6.16.9 before 6.17; 6.17.1 before 6.18.27; 6.19 before 7.0.4; 6.17; 6.17 · source: NVD
LI
Linux · Linux
2429a197648178cd4dc930a9d87c13c547460564 before 43222ac484f93b3ec2d240a7575e1cedd31f5fa4; 2429a197648178cd4dc930a9d87c13c547460564 before 183d37f12d1c8ed24a5bfc7addad05510da22a94; 2429a197648178cd4dc930a9d87c13c547460564 before 6929350080f4da292d111a3b33e53138fee51cec; 71571e187106631a8127f2dde780f35caa358d33; 6.16.9 before 6.17; 6.17 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46039
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-46039
Patch
https://git.kernel.org/stable/c/183d37f12d1c8ed24a5bfc7addad05510da22a94
Patch
https://git.kernel.org/stable/c/43222ac484f93b3ec2d240a7575e1cedd31f5fa4
Patch
https://git.kernel.org/stable/c/6929350080f4da292d111a3b33e53138fee51cec
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