Vulnerability · Published Jan 27, 2026 · Assigned by TPLink

CVE-2026-1315Unauthenticated Denial of Service via Firmware Update Endpoint on TP-Link Tapo C220 & C520WS

High 7.1

In plain English

A high-severity improper input validation in Tapo C220 v1 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.6%top 49.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

By sending crafted files to the firmware update endpoint of Tapo C220 v1 and C520WS v2, the device terminates core system services before verifying authentication or firmware integrity. An unauthenticated attacker can trigger a persistent denial of service, requiring a manual reboot or application initiated restart to restore normal device operation.

Affected products (as reported)

Vendor	Product	Versions
TP-Link Systems Inc.	Tapo C220 v1	0 – before 1.4.2 Build 251112
TP-Link Systems Inc.	Tapo C520WS v2	0 – before 1.2.3 Build 251114

Weakness: CWE-20 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

In plain English

Official description

Affected products (as reported)

References