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CVE-2026-63984: Linux 5.7
CVE-2026-63984. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00514 (percentile 0.42435), scored 15-Oct-2026.
Affected technology
Linux · 8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3 to before 75b3680047bf09af8e7e471a7a6ddf2ce5847f56, 8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3 to before fd238c51b0fa5390cceca9f1ac5a9ffda8063eed, 8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3 to before 3618b34942b76471d044369bfd30d58c39068bf1, 8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3 to before 97e06791368c01f0ad2a4b3269c2abe19485ca32, 8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3 to before de02fc049352af5a9595f015511222d0a85c326b, 8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3 to before 6fe1cb312038516cb4d9fa089d700af7059f1a64, 8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3 to before c0487a9c1e116cf349e2d1f302d9019670460858, 8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3 to before 9d5e7a46a9f6d8f503b41bfefef70659845f1679
Linux
Linux · 5.7
Linux
Component: Not specified by the source
File: net/ipv6/exthdrs.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.
- 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 0.42435 · 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-2026-63984.html