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CVE-2026-64386: linux kernel 6.8; +1 more affected products
CVE-2026-64386. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00457 (percentile 0.3815), scored 15-Oct-2026.
Affected technology
linux kernel · from 6.6.32 (inclusive), before 6.6.145 (exclusive)
linux
linux kernel · from 6.8.1 (inclusive), before 6.12.96 (exclusive)
linux
linux kernel · from 6.13 (inclusive), before 6.18.39 (exclusive)
linux
linux kernel · from 6.19 (inclusive), before 7.1.4 (exclusive)
linux
linux kernel · 6.8
linux
linux kernel · 6.8 · update rc2
linux
linux kernel · 6.8 · update rc3
linux
linux kernel · 6.8 · update rc4
linux
linux kernel · 6.8 · update rc5
linux
linux kernel · 6.8 · update rc6
linux
linux kernel · 6.8 · update rc7
linux
Linux · 433042a91f9373241307725b52de573933ffedbf to before 100fb7c455fa86d248b8bd7bb9de757c192870b4, 4f1fffa2376922f3d1d506e49c0fd445b023a28e to before 3c81dda84799f76b42aec598564316e2964440db, 4f1fffa2376922f3d1d506e49c0fd445b023a28e to before f1add4acb656f5a82806a1ab0e63fed3d8b1bfca, 4f1fffa2376922f3d1d506e49c0fd445b023a28e to before 89234773e8348918111aa15f6922b58cf3843364, 4f1fffa2376922f3d1d506e49c0fd445b023a28e to before 2a88561d66eb855813cf004a0abe648bbb17de5e, 6.6.32 to before 6.6.145
Linux
Linux · 6.8
Linux
Component: Not specified by the source
File: fs/smb/client/smb2pdu.c
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
Source advisory’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CWE
- CWE-415
- CCR priority
- 39.3 /100 (P4)
- CVSS 3.1
- 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00457 · percentile 0.3815 · 2026-10-15
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-16 16:55:38.548135+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-64386.html