Information Disclosure Vulnerability in Tenda AC21 Web Management Interface
CVE-2026-2147

6.9MEDIUM

Key Information:

Vendor

Tenda
Status
Ac21
Vendor
CVE Published:
8 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2147?

A vulnerability has been detected in the Tenda AC21 Web Management Interface, specifically within the /cgi-bin/DownloadLog function. This weakness allows an attacker to perform remote manipulations that can lead to unauthorized information disclosure. The exploit method has been publicly disclosed, raising concerns for users of the affected version 16.03.08.16. It is imperative for users to review their security posture and apply necessary mitigations.

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Affected Version(s)

AC21 16.03.08.16

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-2147 - Proof of Concept

References

https://vuldb.com/?id.344849
vdb-entry
https://vuldb.com/?ctiid.344849
signaturepermissions-required
https://vuldb.com/?submit.747429
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

942384053 (VulDB User)
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