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CVE-2026-0919

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

Published: Jan 27, 2026Updated: Apr 29, 2026 Sources: CVE List NVDCWE-20
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.5%
Top 59.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

Tapo C220 v1TP-Link Systems Inc.Networking Infrastructure
Tapo C520WS v2TP-Link Systems Inc.Networking Infrastructure
Tapo C210 v3TP Link Systems Inc.
Embedded
Networking Infrastructure / router-switch
tapo c220 firmwaretp-linkNetworking Infrastructure
tapo c520ws firmwaretp-linkNetworking Infrastructure
tp-link systems inc.commercialCNNetworking Infrastructureaka tp-link
tp link systems inc.commercialCNNetworking Infrastructureaka tp-link, tplink
tp-linkcommercialTWNetworking Infrastructureaka tp-link, tp link

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://www.tp-link.com/us/support/download/tapo-c220/v1.60/
tp-link.com
https://www.tp-link.com/en/support/download/tapo-c220/v1/
tp-link.com
https://www.tp-link.com/us/support/download/tapo-c520ws/v2/
tp-link.com
and 4 more references View all →

Timeline

Published
Jan 27, 2026
Last Updated
Apr 29, 2026

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