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CVE-2026-89546: Linux 6.19
CVE-2026-89546. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00553 (percentile 0.45035), scored 17-Oct-2026.
Affected technology
Linux · 441244d4273a8037b265fd254dfdaca5fa736ee2 to before 6debde9e3e6ae21dcca75837b4247b13ca4ea2b8, 441244d4273a8037b265fd254dfdaca5fa736ee2 to before 3674f780f47d2906b5a0f7199b66973067bdfeca
Linux
Linux · 6.19
Linux
Component: Not specified by the source
File: fs/nfs/callback.c, include/linux/sunrpc/bc_xprt.h, net/sunrpc/backchannel_rqst.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
- 0.00553 · percentile 0.45035 · 2026-10-17
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-19 10:33:46.008150+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-89546.html