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CVE-2026-64047: linux kernel 5.5; +1 more affected products

CVE-2026-64047. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00514 (percentile 0.42437), scored 15-Oct-2026.

Affected technology

linux kernel · from 5.4.14 (inclusive), before 5.5 (exclusive)
linux

linux kernel · from 5.5.1 (inclusive), before 5.10.258 (exclusive)
linux

linux kernel · from 5.11 (inclusive), before 5.15.209 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.175 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.142 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.92 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.34 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 7.0.11 (exclusive)
linux

linux kernel · 5.5
linux

linux kernel · 5.5 · update rc7
linux

linux kernel · 7.1 · update rc1
linux

linux kernel · 7.1 · update rc2
linux

linux kernel · 7.1 · update rc3
linux

Linux · 9aaaa56845a06aeabdd597cbe19492dc01f281ec to before 73963a375885d5ccb7def39fd0b4f542e0f343dd, 9aaaa56845a06aeabdd597cbe19492dc01f281ec to before 47110c3a9ac247b688657337f5981efcfcb240dc, 9aaaa56845a06aeabdd597cbe19492dc01f281ec to before 84158c2997159df4a0d70cd9c46774512d32a522, 9aaaa56845a06aeabdd597cbe19492dc01f281ec to before 131ef12057d92b77b636321b7849c69222405a97, 9aaaa56845a06aeabdd597cbe19492dc01f281ec to before 66339b71f105e6f83e0da3b9583d95077534fe1d, 9aaaa56845a06aeabdd597cbe19492dc01f281ec to before eca989eab4b2599dcb02f72140a7c08f08838520, 9aaaa56845a06aeabdd597cbe19492dc01f281ec to before 2fb0dc7e0099686c4e9d2732745d8a31b18c3628, 9aaaa56845a06aeabdd597cbe19492dc01f281ec to before 285943c6e7ca309bbea84b253745154241d9788a, d529d6c9f7e3aaeac13c4948f79799ccb825f29d, 5.4.14 to before 5.5
Linux

Linux · 5.5
Linux

Component: Not specified by the source
File: net/tls/tls_sw.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.

Published

CWE
CWE-193
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
0.00514 · percentile 0.42437 · 2026-10-15
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2026-64047.html