Cisco 8800 phones with software 11.0(1) do not properly enforce mounted-filesystem permissions, which allows local users to write to arbitrary files by leveraging shell access, aka Bug ID CSCuz03014.
Severity
CVSS 3.0
7.0 high
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-31)