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Ac21 Firmware CVE-2026-2147

MEDIUM
Information Exposure (CWE-200)
2026-02-08 cna@vuldb.com
5.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Feb 10, 2026 - 18:53 vuln.today
Public exploit code
CVE Published
Feb 08, 2026 - 10:15 nvd
MEDIUM 5.3

DescriptionCVE.org

A weakness has been identified in Tenda AC21 16.03.08.16. This impacts an unknown function of the file /cgi-bin/DownloadLog of the component Web Management Interface. Executing a manipulation can lead to information disclosure. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.

AnalysisAI

Tenda AC21 firmware version 16.03.08.16 contains an information disclosure vulnerability in the web management interface's /cgi-bin/DownloadLog endpoint that allows unauthenticated remote attackers to access sensitive data. Public exploit code is available for this vulnerability, increasing the risk of active exploitation. …

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Vulnerability AssessmentAI

Risk Assessment CVSS 5.3 (MEDIUM). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A remote attacker could exploit this vulnerability to information disclosure.
Remediation Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

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Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. …

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CVE-2026-2147 vulnerability details – vuln.today

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