CVE-2026-0919CWE-20

Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C210, C220 & C520WS

High · published January 27, 2026

CVSS v4.0
7.1
EPSS
1%
Percentile
47.6
In the wild
Unconfirmed
What it is

The HTTP parser of Tapo C210 v3, C220 v1 and C520WS v2 cameras improperly handles requests containing an excessively long URL path. An invalid‑URL error path continues into cleanup code that assumes allocated buffers exist, leading to a crash and service restart. An unauthenticated attacker can force repeated service crashes or device reboots, causing denial of service.

The record
Technical detail
CVSS v4.0
7.1 · HIGH
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
EPSS
0.00592 · 47.6th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-01-27T17:52Z
EPSS history
Timeline
  • 27 JAN 17:52Z
    Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C210, C220 & C520WS
    cvelistv5