Get real-time updates on Telegram
CVE-2026-63867: Linux 5.11
CVE-2026-63867. CVSS 3.1 base score 8.2 (HIGH, Source advisory). EPSS 0.00339 (percentile 0.25717), scored 15-Oct-2026.
Affected technology
Linux · fa3fe2b150316b294f2c662653501273ff25bba8 to before 301a33fd590c408a05c5df800e0cc1e6a8a2f8f8, fa3fe2b150316b294f2c662653501273ff25bba8 to before 68364963e5baf03f16b4420292291f75c8f66497, fa3fe2b150316b294f2c662653501273ff25bba8 to before 907ac6b1658e0277f979fcdfae2a753b495c1510, fa3fe2b150316b294f2c662653501273ff25bba8 to before c4f4cf60797974873dbc8e100144682a6f2f861f, fa3fe2b150316b294f2c662653501273ff25bba8 to before 3b8cbba7c0ed31189c89f90be247b8973ffa79ef, fa3fe2b150316b294f2c662653501273ff25bba8 to before 8f4f0a157e8436a05bf8c3670b24dbc258911c43, fa3fe2b150316b294f2c662653501273ff25bba8 to before 8ab24fdebc369c0dfb90f82c1650b1e66662bb45
Linux
Linux · 5.11
Linux
Component: Not specified by the source
File: net/mptcp/options.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 8.2/10) rates confidentiality impact as none; integrity impact as low; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CCR priority
- 32.9 /100 (P4)
- CVSS 3.1
- 8.2 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H · Source advisory
- EPSS
- 0.00339 · percentile 0.25717 · 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-2026-63867.html