CVE-2026-6241
mediumpriority · track · 0EPSS 0.002 · 5 %ileEUEPSS · scored 2026-10-28
An authenticated format string vulnerability is present in the ONVIF AddScopes in Tapo C520WS v2, where user-controlled input is improperly passed to formatting functions without adequate sanitization. An attacker can inject format specifiers into ONVIF scope parameters to manipulate memory handling behavior. Successful exploitation may cause the ONVIF management service to crash, resulting in DoS condition that impacts normal device operation.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-6241cnnvd
- https://www.tp-link.com/en/support/download/tapo-c520ws/#Firmware-Release-Notescnnvd
- https://www.tp-link.com/us/support/download/tapo-c520ws/#Firmware-Release-Notescnnvd
- https://www.tp-link.com/us/support/faq/5120/cnnvd
- https://www.tp-link.com/en/support/download/tapo-c520ws/#Firmware-Release-Notesenisa_euvd
- https://www.tp-link.com/us/support/download/tapo-c520ws/#Firmware-Release-Notesenisa_euvd
- https://www.tp-link.com/us/support/faq/5120/enisa_euvd
- https://www.tp-link.com/en/support/download/tapo-c520ws/#Firmware-Release-Notesnvd
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