CVE-2026-64000
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()…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.49% probability · 42th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS 0.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/stable/c/09a37dca090c55ffb1a33f52d8667f1c2367ef48Patch
- https://git.kernel.org/stable/c/71c986c0ba45b7dc574fae27c83e7b6671556f37Patch
- https://git.kernel.org/stable/c/78607a6854a22a2502f68092202e75a39af4865dPatch
- https://git.kernel.org/stable/c/a4b64f3e9c7b8259f7dd251a0313420ba7c01852Patch
- https://git.kernel.org/stable/c/f229426072fc865654a60978bb7fda790a051ff3Patch
- https://git.kernel.org/stable/c/fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.