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CVE-2026-68442: Linux 6.8
CVE-2026-68442. CVSS 3.1 base score 7.8 (HIGH, Source advisory). EPSS 0.00117 (percentile 0.01543), scored 15-Oct-2026.
Affected technology
Linux · f86f7a75e2fb5fd7d31d00eab8a392f97ba42ce9 to before 2a9246a424f45f33a1b8367052611ebe874868ad, f86f7a75e2fb5fd7d31d00eab8a392f97ba42ce9 to before 9304713b70e7e1450e3a76e758836fe5391bfa95, f86f7a75e2fb5fd7d31d00eab8a392f97ba42ce9 to before 0e465c63f103a5ce6849614d6bda048d70eebec8, f86f7a75e2fb5fd7d31d00eab8a392f97ba42ce9 to before 5eff4d5b17fa1950e80bfd1ba43dc0699e61a644
Linux
Linux · 6.8
Linux
Component: Not specified by the source
File: fs/btrfs/extent_map.c
Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
A local attacker with low privileges can trigger a use-after-free error. Source advisory’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high. The description does not state a further attacker outcome.
- CCR priority
- 31.2 /100 (P4)
- CVSS 3.1
- 7.8 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00117 · percentile 0.01543 · 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-2026-68442.html