Vulnerability in Aquaplatform Revive Adserver
CVE-2026-21640
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (14.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Aquaplatform Revive Adserver
- Revive Adserver — versions 6
Weakness classification (CWE)
References
- hackerone.com/reports/3445332 (Third Party Advisory)
Frequently asked questions
- What is CVE-2026-21640?
- CVE-2026-21640 is a low-severity vulnerability in Aquaplatform Revive Adserver, classified under Use of Externally-Controlled Format String. CVSS score: 2.7/10. Published 2026-01-20.
- How severe is CVE-2026-21640?
- Low severity. CVSS v3 base score is 2.7 out of 10.