CVE-2025-15542

MEDIUMNVD 5.35.3—Trending — 3 sources updated this week

5.3

Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blocking all voice lines and causing a denial of service on incoming calls.

CVSS v3: 5.3
EG Score: 5.3(medium)
EPSS: 33.7%
KEV: Not listed

Published

January 29, 2026

Last Modified

March 9, 2026

References (2)

f23511db-6c3e-4e32-a477-6aa17d310630https://www.tp-link.com/de/support/download/vx800v/#Firmware
f23511db-6c3e-4e32-a477-6aa17d310630https://www.tp-link.com/us/support/faq/4930/

Weakness Classification(1)

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

CWE-754

Data Freshness Timeline

(refreshed 7× in last 7d / 7× 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.

2026-05-31 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
2026-05-29 15:02 UTCEG score recompute
2026-05-29 15:02 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-15542?

CVE-2025-15542 is a medium vulnerability published on January 29, 2026. Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blocking all voice lines and causing a denial of service on incoming calls.

When was CVE-2025-15542 disclosed?

CVE-2025-15542 was first published in the National Vulnerability Database on January 29, 2026, with the most recent update on March 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-15542 actively exploited?

CVE-2025-15542 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-15542?

CVE-2025-15542 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2025-15542?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-15542, 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-2025-15542

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-15542?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)