Medium (5.3) in hcltech sametime. EPSS 0.2% chance of exploitation in the next 30 days.
HCL Sametime is impacted by misconfigured security related HTTP headers. It was identified that some HTTP headers were missing on web service responses. This will lead to less secure browser default treatment for the policies controlled by these headers.
Severity
CVSS 3.1
5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS
0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)