CVE-2026-21640 LOW

CVE-2026-21640

Vendor Revive
Product Revive Adserver
Published January 20, 2026
Last update January 21, 2026
View on NVD All CVEs

CVSS base score

2.7/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 20, 2026 CVE published
January 21, 2026 Record updated