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Ax3 Firmware CVE-2025-71023

HIGH
Stack-based Buffer Overflow (CWE-121)
2026-01-13 cve@mitre.org
Stack Overflow Denial Of Service Ax3 Firmware Tenda
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 20, 2026 - 18:04 vuln.today
Public exploit code
CVE Published
Jan 13, 2026 - 16:16 nvd
HIGH 7.5

DescriptionCVE.org

Tenda AX-3 v16.03.12.10_CN was discovered to contain a stack overflow in the mac2 parameter of the fromAdvSetMacMtuWan function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

AnalysisAI

Tenda AX-3 v16.03.12.10_CN was discovered to contain a stack overflow in the mac2 parameter of the fromAdvSetMacMtuWan function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request. [CVSS 7.5 HIGH]

Technical ContextAI

Classified as CWE-121 (Stack-based Buffer Overflow). Affects the a stack overflow in the mac2 component of Ax3 Firmware. Tenda AX-3 v16.03.12.10_CN was discovered to contain a stack overflow in the mac2 parameter of the fromAdvSetMacMtuWan function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

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CVE-2025-71023 vulnerability details – vuln.today
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