CVE-2025-51451

CRITICALNVD 9.89.8—

9.8

In TOTOLINK EX1200T firmware 4.1.2cu.5215, an attacker can bypass login by sending a specific request through formLoginAuth.htm.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 27.8%
KEV: Not listed

Published

August 13, 2025

Last Modified

September 26, 2025

References (3)

Weakness Classification(1)

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

CWE-287Improper Authentication

Data Freshness Timeline

(refreshed 13× in last 7d / 20× 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.

2026-06-08 14:16 UTCepss_batch
2026-06-08 14:16 UTCepss_batch
2026-06-07 15:24 UTCepss_batch
2026-06-06 13:47 UTCepss_batch
2026-06-06 13:47 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
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 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-30 00:24 UTCEG score recompute

Frequently asked(5)

What is CVE-2025-51451?

CVE-2025-51451 is a critical vulnerability published on August 13, 2025. In TOTOLINK EX1200T firmware 4.1.2cu.5215, an attacker can bypass login by sending a specific request through formLoginAuth.htm.

When was CVE-2025-51451 disclosed?

CVE-2025-51451 was first published in the National Vulnerability Database on August 13, 2025, with the most recent update on September 26, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-51451 actively exploited?

CVE-2025-51451 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-51451?

CVE-2025-51451 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2025-51451?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-51451, 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-2025-51451

📅 Published

🔄 Last Modified

🔗 References (3)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-51451?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (3)

Frequently asked(5)

Related CVEs(same CWE)