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Vulnerabilities

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 · catalog updated Jul 22, 2026 · tapo c200 firmware

Check if you run it

No confirmed exploitation is on record for CVE-2026-1871. EPSS is 0.30%. Act only if a listed version of tapo c200 firmware is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.30%
Remediation
Advisory link
Affected products
cpe tp-link/tapo c200 firmware

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • 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

How to fix CVE-2026-1871

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-1871. EPSS is 0.30%. Act only if a listed version of tapo c200 firmware is installed.

Which versions are affected?

Compare what you have installed with 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. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-121: Stack-based Buffer Overflow. EPSS 0.30%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

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

Sources

  • CVE.orgVulnerability recordCVE-2026-1871

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-1871

    30-day exploitation probability 0.3%

    first.org
  • 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

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.