Cisco WebEx Meeting Center Original Release Base allows remote attackers to obtain sensitive information about username validity by (1) attending or (2) hosting a meeting, aka Bug ID CSCux84312.
Severity
CVSS 3.0
7.5 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
2.3% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-31)