CVE-2026-0918The Tapo C100 v5, C220 v1 and C520WS v2 cameras’ HTTP service does not safely handle POST requests containing an excessively large Content-Length header.
Updated under an hour ago ()
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It affects tp-link tapo_c220_firmware and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- 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
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
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
- https://www.crac-learning.com/post/smart-home-security-research-cve-2026-0918-assigned
- https://www.tp-link.com/en/support/download/tapo-c220/v1/product
- https://www.tp-link.com/en/support/download/tapo-c520ws/v2/product
- https://www.tp-link.com/us/support/download/tapo-c100/v5/product
- https://www.tp-link.com/us/support/download/tapo-c220/v1.60/product
- https://www.tp-link.com/us/support/download/tapo-c520ws/v2/product
- https://www.tp-link.com/us/support/faq/4923/vendor-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.