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CVE-2026-80663: Linux 5.18
CVE-2026-80663. CVSS 3.1 base score 7.1 (HIGH, Source advisory). EPSS 0.00171 (percentile 0.06083), scored 15-Oct-2026.
Affected technology
Linux · 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 to before 905493a6338c82a70da16f86e0a6215db5a3d73d, 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 to before db938eb9a3c1317596c28e94413b33426508d51b, 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 to before 72a07abc6b9046f07a08bba353cad7667bcc9dce, 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 to before 19ffeb30fdfce63f8d6aca71bcdddb3f69d46278, 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 to before e8adac69d1bdf035ef97cc914e845acd4ef08e28, 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 to before 607af438e6430893a822964c841a1994b33acccc
Linux
Linux · 5.18
Linux
Component: Not specified by the source
File: tools/power/x86/intel-speed-select/isst-daemon.c
Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
A local unprivileged user can pre-create a symlink at that path and cause a root-run daemon instance to write into an attacker-chosen file. Source advisory’s CVSS 3.1 assessment (base score 7.1/10) rates confidentiality impact as none; integrity and availability impact as high.
- CCR priority
- 28.4 /100 (P4)
- CVSS 3.1
- 7.1 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H · Source advisory
- EPSS
- 0.00171 · percentile 0.06083 · 2026-10-15
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-16 20:20:42.059737+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-80663.html