Out-of-bounds read in Linux kernel - CVE-2026-80796
Published: September 5, 2026
Vulnerability identifier: #VU147121
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80796
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to read kernel memory beyond activation parameter data.
The vulnerability exists due to improper bounds checking in the NCI activation parameter extractors when processing a crafted NCI RF_INTF_ACTIVATED_NTF notification. A remote attacker can send a crafted NCI notification with an inconsistent inner length byte to read kernel memory beyond activation parameter data.
Affected software
Linux kernel
How to mitigate CVE-2026-80796
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/0428fa2c22e2ba0cff766d3b80d461e149102045
- https://git.kernel.org/stable/c/04e51353cb9fa321caaeeed8331d4cd041fbaca7
- https://git.kernel.org/stable/c/1168484fe2b3828bf24a46f3c42a8719fade679b
- https://git.kernel.org/stable/c/9620a91f8d643b680f417a435db399a04d1e06d8
- https://git.kernel.org/stable/c/9b01f5af0dc59263b59391b148bc78d83c0354a9
- https://git.kernel.org/stable/c/be311c0cfeadfbe815ea22d2914a98d06e3fab0e
- https://git.kernel.org/stable/c/cf9d44be50b9074a5abdc301b4a3ba3e283591df
- https://git.kernel.org/stable/c/e25b44bd8b8cc666b49a3fe0ef547e64d5b1e300
- https://git.kernel.org/stable/c/f5c534b53f8c424a8e7633c9b585475c4bf4ee18