CVE-2025-71020

HIGH
2026-01-16 [email protected]
7.5
CVSS 3.1
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CVSS Vector

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 26, 2026 - 21:00 vuln.today
Public exploit code
CVE Published
Jan 16, 2026 - 16:15 nvd
HIGH 7.5

Tags

Stack Overflow Denial Of Service Ax1806 Firmware Tenda

Description

Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the security parameter of the sub_4C408 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

Analysis

Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the security parameter of the sub_4C408 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request. [CVSS 7.5 HIGH]

Technical Context

Classified as CWE-121 (Stack-based Buffer Overflow). Affects the security component of Ax1806 Firmware. Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the security parameter of the sub_4C408 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

Affected Products

Vendor: Tenda. Product: Ax1806 Firmware. Versions: up to 1.0.0.1. Component: security.

Remediation

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

Priority Score

58
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +38
POC: +20

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CVE-2025-71020 vulnerability details – vuln.today
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