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CVE-2026-21640

LOW
2.7
CVSS Score
Published: January 20, 2026 at 08:48 PM UTC
Updated: June 17, 2026 at 10:18 AM UTC
2 products affected across 2 vendorsRevive AdserverRevive Adserver

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Severity
LOW2.7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Revive Adserver· Aquaplatform
95%
6.0.0 ≤ v ≤ 6.0.4
Revive Adserver· Revive Adserver
60%
6 ≤ v ≤ 6.0.46

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory
Source: cverecord
https://hackerone.com/reports/3445332

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.7LOW[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-134

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