High 7.1Published Jan 27, 2026

CVE-2026-0918Null Pointer Dereference in Tapo SmartCam HTTP Service on TP-Link Tapo C220 & C520WS

Updated under an hour ago (Oct 27, 2026, 8:40 PM ET)

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It affects TP-Link Systems Inc. Tapo C220 v1 and 4 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for TP-Link Systems Inc. Tapo C220 v1

Exploited in the last 30 days

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.

CVSS: 7.1 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-476
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: TPLink
NVD analysis: Modified
Record last updated: Apr 28, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

TP-Link Systems Inc. Tapo C220 v1 tp_link_systems:tapo_c220_v1 (from the name)	before 1.4.2 Build 251112	CNA record
TP-Link Systems Inc. Tapo C520WS v2 tp_link_systems:tapo_c520ws_v2 (from the name)	before 1.2.3 Build 251114	CNA record
TP-Link Systems Inc. Tapo C100 v5 tp_link_systems:tapo_c100_v5 (from the name)	before 1.4.3 Build 251128	CNA record
tp-link tapo_c220_firmware tp-link:tapo_c220_firmware	before 1.4.2	NVD
tp-link tapo_c520ws_firmware tp-link:tapo_c520ws_firmware	before 1.2.3	NVD

References

References

https://www.tp-link.com/us/support/download/tapo-c220/v1.60/	patch, product
https://www.tp-link.com/en/support/download/tapo-c220/v1/	patch, product
https://www.tp-link.com/us/support/download/tapo-c520ws/v2/	patch, product
https://www.tp-link.com/en/support/download/tapo-c520ws/v2/	patch, product
https://www.tp-link.com/us/support/faq/4923/	vendor-advisory
https://www.tp-link.com/us/support/download/tapo-c100/v5/	patch, product
https://www.crac-learning.com/post/smart-home-security-research-cve-2026-0918-assigned	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.