CVE detail
CVE-2026-34121
An authentication bypass vulnerability within the HTTP handling of the DS configuration service in TP-Link Tapo C520WS v2.6 was identified, due to inconsistent parsing and authorization logic in JSON requests during authentication check. An unauthenticated attacker can append an authentication-exempt action to a request containing privileged DS do actions, bypassing authorization checks. Successful exploitation allows unauthenticated execution of restricted configuration actions, which may result in unauthorized modification of device state.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 10.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
4 source links · newest first
TP-Link HTTP authentication bypass
newslabs.taszk.ioApr 27, 2026, 11:59 PM- https://www.tp-link.com/us/support/faq/5047/www.tp-link.com
No excerpt available.
Vendor Advisorywww.tp-link.comApr 2, 2026, 6:16 PM No excerpt available.
Vendor Advisorywww.tp-link.comApr 2, 2026, 6:16 PMNo excerpt available.
Vendor Advisorywww.tp-link.comApr 2, 2026, 6:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
6 related CVEs with shared weakness or product evidence
- CVE-2026-8714CVSS 7.1 · High
A denial-of-service vulnerability exists in the RTSP server component of TP-Link Tapo C520WS v2 due to improper handling of syntactically invalid input. Crafted inputs can trigge…
- CVE-2026-34124CVSS 7.1 · High
A denial-of-service vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP request path parsing logic. The implementation enforces length restrictions on the raw…
- CVE-2026-34122CVSS 7.1 · High
A stack-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within a configuration handling component due to insufficient input validation. An attacker…
- CVE-2026-34120CVSS 7.1 · High
A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the asynchronous parsing of local video stream content due to insufficient alignment a…
- CVE-2026-34119CVSS 7.1 · High
A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP parsing loop when appending segmented request bodies without continuous write…
- CVE-2026-34118CVSS 7.1 · High
A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 in the HTTP POST body parsing logic due to missing validation of remaining buffer capacity af…