CVE WatchJul 23, 2026

CVE-2026-6242

An authenticated format string vulnerability exists in the ONVIF Subscribe service in Tapo C520WS v2 due to improper handling of externally

CVSS

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No CVSS

EPSS

0.2%

KEV

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Exploit Today

0-100

Published: Jun 6, 2026 · Last modified: Jul 23, 2026 · CWE-134

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-07-062026-08-03

Technical description

An authenticated format string vulnerability exists in the ONVIF Subscribe service in Tapo C520WS v2 due to improper handling of externally supplied parameters within formatting functions. An attacker may inject crafted format strings into event subscription requests or notification generation path to disrupt normal service execution. Successful exploitation may cause the event notification service to terminate unexpectedly, resulting in the loss of real-time alarm functionality and disruption of event notifications.

Official references

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