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Findings

Vulnerability · CVE-2026-1871

TP-Link Tapo C200 v5 contains a stack-based buffer overflow flaw in RTSP authentication handling due to improper validation of Authorization header field lengths, whic…

Published Jun 2, 2026 · corrected/updated Jul 22, 2026 · tp-link tapo c200 firmware · evidence confidence medium

TP-Link Tapo C200 v5 contains a stack-based buffer overflow flaw in RTSP authentication handling due to improper validation of Authorization header field lengths, which can be triggered by a crafted authentication request. Successful exploitation causes the affected RTSP core service process to crash and triggers an automatic system reboot, resulting in a denial of service (DoS) condition. This prevents legitimate users from accessing the camera’s live video stream or management interface until the service restarts.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2026-1871 is a high public vulnerability record for tp-link tapo c200 firmware. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether tp-link tapo c200 firmware is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: tp-link/tapo c200 firmware (1.0.12); tp-link/tapo c200 firmware (1.0.13); tp-link/tapo c200 firmware (1.0.17); tp-link/tapo c200 firmware (1.0.5). Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 7.1. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-121. Sources contributing to this record: nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

  • Patch and remediation

    No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 2, 2026 · NIST NVD

    Detected

    TP-Link Tapo C200 v5 contains a stack-based buffer overflow flaw in RTSP authentication handling due to improper validation of Authorization header field lengths, which can be triggered by a crafted authentication request. Successful exploitation causes the affected RTSP core service process to crash and triggers an automatic system reboot, resulting in a denial of service (DoS) condition. This pr

  2. Jul 22, 2026 · NIST NVD

    Updated

    TP-Link Tapo C200 v5 contains a stack-based buffer overflow flaw in RTSP authentication handling due to improper validation of Authorization header field lengths, which can be triggered by a crafted authentication request. Successful exploitation causes the affected RTSP core service process to crash and triggers an automatic system reboot, resulting in a denial of service (DoS) condition. This pr

Affected

  • cpe tp-link/tapo c200 firmware1.0.12
  • cpe tp-link/tapo c200 firmware1.0.13
  • cpe tp-link/tapo c200 firmware1.0.17
  • cpe tp-link/tapo c200 firmware1.0.5
  • cpe tp-link/tapo c200 firmware1.1.4
  • cpe tp-link/tapo c200 firmware1.1.8
  • cpe tp-link/tapo c200 firmware1.2.3
  • cpe tp-link/tapo c200 firmware1.3.1

Sources

  • NIST NVDVulnerability recordCVE-2026-1871

    TP-Link Tapo C200 v5 contains a stack-based buffer overflow flaw in RTSP authentication handling due to improper validation of Authorization header field lengths, which can be triggered by a crafted authentication request. Successful exploitation causes the affected RTSP core se

    nvd.nist.gov

References