CVE-2025-52666

LOWNVD 2.72.7—Trending — 3 sources updated this weekElevated

2.7

Improper neutralisation of format characters in the settings of Revive Adserver 5.5.2 and 6.0.1 and earlier versions causes an administrator user to disable the admin user console due to a fatal PHP error.

CVSS v3: 2.7
EG Score: 2.7(medium)
EPSS: 26.5%
KEV: Not listed

Published

November 20, 2025

Last Modified

December 2, 2025

References (2)

support@hackeronehttps://hackerone.com/reports/3399218
134c704f-9b21-4f2e-91b3-4a467353bcc0https://hackerone.com/reports/3399218

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-134Use of Externally-Controlled Format String

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 18:59 UTCEG score recompute
2026-05-29 18:59 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-52666?

CVE-2025-52666 is a low vulnerability published on November 20, 2025. Improper neutralisation of format characters in the settings of Revive Adserver 5.5.2 and 6.0.1 and earlier versions causes an administrator user to disable the admin user console due to a fatal PHP error.

When was CVE-2025-52666 disclosed?

CVE-2025-52666 was first published in the National Vulnerability Database on November 20, 2025, with the most recent update on December 2, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-52666 actively exploited?

CVE-2025-52666 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-52666?

CVE-2025-52666 has a CVSS v3 base score of 2.7 (NVD).

How do I remediate CVE-2025-52666?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-52666, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-52666

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-52666?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)