What is the CVSS score of CVE-2026-2147?

CVE-2026-2147 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Ac21 Firmware are affected by CVE-2026-2147?

Organizations using A weakness should be aware of moderate risk from CVE-2026-2147, a information exposure vulnerability rated CVSS 5.3.

Is there a public PoC exploit available for CVE-2026-2147?

Yes, a public proof-of-concept exploit is available for CVE-2026-2147. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-2147?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review data exposure and access controls.

Ac21 Firmware CVE-2026-2147

MEDIUM

Information Exposure (CWE-200)

2026-02-08 cna@vuldb.com

Information Disclosure Tenda Ac21 Firmware

5.3

CVSS 3.1 · NVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

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. No patch is currently available for affected devices.

Technical ContextAI

Classified as CWE-200 (Information Exposure). Affects Ac21 Firmware. 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.