What is the CVSS score of CVE-2025-55128?

CVE-2025-55128 has a CVSS 3.0 base score of 6.5 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.2%.

Which versions of PHP are affected by CVE-2025-55128?

CVE-2025-55128 presents notable security risk, a resource exhaustion vulnerability rated CVSS 6.5. Service availability could be impacted. Proof-of-concept code is publicly available.

Is there a public PoC exploit available for CVE-2025-55128?

Yes, a public proof-of-concept exploit is available for CVE-2025-55128. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-55128?

Within 7 days: Identify affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

PHP CVE-2025-55128

MEDIUM

Uncontrolled Resource Consumption (CWE-400)

2025-11-20 support@hackerone.com

Denial Of Service PHP Revive Adserver

6.5

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:23 vuln.today

PoC Detected

Jan 14, 2026 - 21:23 vuln.today

Public exploit code

CVE Published

Nov 20, 2025 - 19:16 nvd

MEDIUM 6.5

DescriptionCVE.org

HackerOne community member Dang Hung Vi (vidang04) has reported an uncontrolled resource consumption vulnerability in the “userlog-index.php”. An attacker with access to the admin interface could request an arbitrarily large number of items per page, potentially leading to a denial of service.

AnalysisAI

HackerOne community member Dang Hung Vi (vidang04) has reported an uncontrolled resource consumption vulnerability in the “userlog-index.php”. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. HackerOne community member Dang Hung Vi (vidang04) has reported an uncontrolled resource consumption vulnerability in the “userlog-index.php”. An attacker with access to the admin interface could request an arbitrarily large number of items per page, potentially leading to a denial of service. Affected products include: Aquaplatform Revive Adserver.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.