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CVE-2026-0918

Null Pointer Dereference in Tapo SmartCam HTTP Service on TP-Link Tapo C220 & C520WS

Published: Jan 27, 2026Updated: Apr 29, 2026 Sources: CVE List NVDCWE-476
7.5HIGH
NVD MITRE
EPSS Score
0.7%
Top 51.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

The Tapo C100 v5, C220 v1 and C520WS v2 cameras’ HTTP service does not safely handle POST requests containing an excessively large Content-Length header. The resulting failed memory allocation triggers a NULL pointer dereference, causing the main service process to crash. An unauthenticated attacker can repeatedly crash the service, causing temporary denial of service. The device restarts automatically, and repeated requests can keep it unavailable.

No summary for this CVE yet.

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-476

Affected Products

TP-Link Systems Inc.
commercial·CNaka tp-link
Tapo C220 v1
Networking Infrastructure
Tapo C520WS v2
Networking Infrastructure
Tapo C100 v5
Networking Infrastructure
tp-link
commercial·TWaka tp link
tapo c220 firmware
Networking Infrastructure
tapo c520ws firmware
Networking Infrastructure

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Impact
Initial Access
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References

https://www.crac-learning.com/post/smart-home-security-research-cve-2026-0918-assigned
crac-learning.com
https://www.tp-link.com/en/support/download/tapo-c220/v1/
tp-link.com
https://www.tp-link.com/en/support/download/tapo-c520ws/v2/
tp-link.com
and 4 more references View all →

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