CVE-2026-64000CWE-125

CVE-2026-64000

Critical · published July 19, 2026

CVSS v3.1
9.8
EPSS
0%
Percentile
41.3
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

net: hsr: fix potential OOB access in supervision frame handling

Ensure the entire TLV header is linearized before access by adding

sizeof(struct hsr_sup_tlv) to the pskb_may_pull() calls. Without this,

a truncated frame could cause an out-of-bounds access.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00491 · 41.3th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-07-19T20:17Z
Affected products (10)
ProductVersionsFixed in
linux/linux_kernel≥ 5.16, < 6.1.1766.1.176
linux/linux_kernel≥ 6.2, < 6.6.1436.6.143
linux/linux_kernel≥ 6.7, < 6.12.936.12.93
linux/linux_kernel≥ 6.13, < 6.18.356.18.35
linux/linux_kernel≥ 6.19, < 7.0.127.0.12
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
References (6)
https://git.kernel.org/stable/c/09a37dca090c55ffb1a33f52d8667f1c2367ef48 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/71c986c0ba45b7dc574fae27c83e7b6671556f37 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/78607a6854a22a2502f68092202e75a39af4865d · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a4b64f3e9c7b8259f7dd251a0313420ba7c01852 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f229426072fc865654a60978bb7fda790a051ff3 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 19 JUL 14:56Z
    net: hsr: fix potential OOB access in supervision frame handling
    cvelistv5