CVE-2026-21640
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 2.7epss 0.2%
exploitation probability
0.2%top 89% of all CVEs
observed exploitation
nono source reports it
HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error.
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Affected products
Revive · Revive AdserverReferences
https://hackerone.com/reports/3445332