CVE-2026-64000 net: hsr: fix potential OOB access in supervision frame handling

🗓️ 19 Jul 2026 14:56:18Reported by GoogleType

osv

osv🔗 osv.dev👁 3 Views

Linux kernel net hsr fixes out-of-bounds access by linearizing TLV header in supervision frames.

Reporter	Title	Published	Views	Family All 7
CVE	CVE-2026-64000	19 Jul 202614:56	–	cve
Cvelist	CVE-2026-64000 net: hsr: fix potential OOB access in supervision frame handling	19 Jul 202614:56	–	cvelist
EUVD	EUVD-2026-45573	19 Jul 202614:56	–	euvd
NVD	CVE-2026-64000	19 Jul 202616:17	–	nvd
OSV	DEBIAN-CVE-2026-64000	19 Jul 202616:17	–	osv
OSV	UBUNTU-CVE-2026-64000	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61317	19 Jul 202600:00	–	ptsecurity

Source	Link
git	www.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
git	www.git.kernel.org/stable/c/09a37dca090c55ffb1a33f52d8667f1c2367ef48
git	www.git.kernel.org/stable/c/71c986c0ba45b7dc574fae27c83e7b6671556f37
git	www.git.kernel.org/stable/c/78607a6854a22a2502f68092202e75a39af4865d
git	www.git.kernel.org/stable/c/a4b64f3e9c7b8259f7dd251a0313420ba7c01852
git	www.git.kernel.org/stable/c/f229426072fc865654a60978bb7fda790a051ff3
git	www.git.kernel.org/stable/c/fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64000.json
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-64000

20 Jul 2026 03:47Current

5.3Medium risk

Vulners AI Score5.3

CVSS 3.19.8

EPSS0.00172

high availability supervision frame length value header out of bounds kernel vulnerability