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Vulnerabilities

Vulnerability · CVE-2026-15316

An improper input validation vulnerability in the configuration service for processing encrypted credential data has been identified in Tapo C200 v5.

Published Aug 18, 2026 · catalog updated Oct 22, 2026 · tapo c200 firmware

Check if you run it

No confirmed exploitation is on record for CVE-2026-15316. EPSS is 0.24%. 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
0.24%
Remediation
Version ranges on file
Affected products
cpe tp-link/tapo c200 firmware

An improper input validation vulnerability in the configuration service for processing encrypted credential data has been identified in Tapo C200 v5. An attacker can send oversized crypted ciphertext values that may trigger exception handling failures, due to insufficient validation, causing the affected device to crash or restart. Successful exploitation may temporarily disrupt HTTPS management and monitoring functionality, resulting in a denial-of-service (DoS) condition until the service recovers.

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 firmware< 1.4.6

How to fix CVE-2026-15316

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-2026-15316. EPSS is 0.24%. 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 < 1.4.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-20: Improper Input Validation. EPSS 0.24%. 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. Aug 18, 2026 · NIST NVD

    Detected

    An improper input validation vulnerability in the configuration service for processing encrypted credential data has been identified in Tapo C200 v5. An attacker can send oversized crypted ciphertext values that may trigger exception handling failures, due to insufficient validation, causing the affected device to crash or restart. Successful exploitation may temporarily disrupt HTTPS management a

  2. Oct 22, 2026 · NIST NVD

    Updated

    An improper input validation vulnerability in the configuration service for processing encrypted credential data has been identified in Tapo C200 v5. An attacker can send oversized crypted ciphertext values that may trigger exception handling failures, due to insufficient validation, causing the affected device to crash or restart. Successful exploitation may temporarily disrupt HTTPS management a

Sources

  • CVE.orgVulnerability recordCVE-2026-15316

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-15316

    30-day exploitation probability 0.24%

    first.org
  • NIST NVDVulnerability recordCVE-2026-15316

    An improper input validation vulnerability in the configuration service for processing encrypted credential data has been identified in Tapo C200 v5. An attacker can send oversized crypted ciphertext values that may trigger exception handling failures, due to insufficient valida

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.