CVE-2026-0919

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

Published Jan 27, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description The HTTP parser of Tapo 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 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.
Title Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C220 & C520WS Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C210, C220 & C520WS
References
Type Values Removed Values Added
First Time appeared Tp-link tapo C220
Tp-link tapo C220 Firmware
Tp-link tapo C520ws
Tp-link tapo C520ws Firmware
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:h:tp-link:tapo_c220:1:*:*:*:*:*:*:*
cpe:2.3:h:tp-link:tapo_c520ws:2:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c220_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c520ws_firmware:*:*:*:*:*:*:*:*
Vendors & Products Tp-link tapo C220
Tp-link tapo C220 Firmware
Tp-link tapo C520ws
Tp-link tapo C520ws Firmware
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link tapo
Tp-link tapo C220 V1
Tp-link tapo C520ws V2
Vendors & Products Tp-link
Tp-link tapo
Tp-link tapo C220 V1
Tp-link tapo C520ws V2
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The HTTP parser of Tapo 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.
Title Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C220 & C520WS
Weaknesses CWE-20
References
Metrics cvssV4_0

{'score': 7.1, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Apr 29, 2026, 4:14 PM
Reserved
Jan 13, 2026, 7:44 PM
Status
Modified
Published
Jan 27, 2026, 6:15 PM
Modified
Jun 17, 2026, 10:11 AM