Stack-based buffer overflow in Linux kernel - CVE-2026-80803
Published: September 5, 2026
Vulnerability identifier: #VU147114
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80803
CWE-ID: CWE-121
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to corrupt stack memory.
The vulnerability exists due to improper length validation in the digital_in_recv_sensf_res() function when processing an NFC-F device response. A remote attacker can send an oversized SENSF_RES response to corrupt stack memory.
Affected software
Linux kernel
How to mitigate CVE-2026-80803
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/31aa28ed732f66ab83c40ef53d99791be69b85c4
- https://git.kernel.org/stable/c/344a56d7c8e0f3cbaff0bcb1bcd95a1a1db24b16
- https://git.kernel.org/stable/c/4e942da2869bcd646353eef706b7dd82efeb9db5
- https://git.kernel.org/stable/c/6afb29751ee731e7f7a96feb8a15f91441e552ba
- https://git.kernel.org/stable/c/a1ef9bddfbb3ae42b036c5aa16cf386d78db70b6
- https://git.kernel.org/stable/c/a56773e649ea99b344d6bbaf90f34c8e3fadef5d
- https://git.kernel.org/stable/c/af4c0606f743e009254a8d252096855335ade85d
- https://git.kernel.org/stable/c/d0756a98277e383c26fead988a96c91f0781cd7f
- https://git.kernel.org/stable/c/e886c63d2ca7108826076989103a1ffa8a0bb8f4