CVE-2026-15316Denial-of-Service via Oversized Encrypted Credential Input in TP-Link Tapo C200
Updated under an hour ago ()
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It affects TP-Link Systems Inc. Tapo C200 v5 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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Free account, 1 product
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.
- CVSS
- 7.1 HIGH (v4.0, CNA)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
- Weakness (CWE)
- CWE-20
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- TPLink
- NVD analysis
- Analyzed
- Record last updated
- Aug 20, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TP-Link Systems Inc. Tapo C200 v5 tp_link_systems:tapo_c200_v5 (from the name) | before V5_1.4.6 Build 260709 Rel.27675n | CNA record |
tp-link tapo_c200_firmware tp-link:tapo_c200_firmware | before 1.4.6 | NVD |
References
- https://www.tp-link.com/us/support/download/tapo-c200/v5/patch, product, release-notes
- https://www.tp-link.com/en/support/download/tapo-c200/v5/patch, product, release-notes
- https://www.tp-link.com/us/support/faq/5248/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.