CVE-2025-25663

CRITICAL
2025-02-20 [email protected]
9.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 18:27 vuln.today
PoC Detected
Mar 17, 2025 - 15:10 vuln.today
Public exploit code
CVE Published
Feb 20, 2025 - 23:15 nvd
CRITICAL 9.8

Tags

Memory Corruption Tenda Buffer Overflow Ac8 Firmware

Description

A vulnerability was found in Tenda AC8V4 V16.03.34.06. Affected is the function SUB_0046AC38 of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to stack-based buffer overflow.

Analysis

A vulnerability was found in Tenda AC8V4 V16.03.34.06. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. A vulnerability was found in Tenda AC8V4 V16.03.34.06. Affected is the function SUB_0046AC38 of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to stack-based buffer overflow. Affected products include: Tenda Ac8 Firmware.

Affected Products

Tenda Ac8 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).

Priority Score

69
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +49
POC: +20

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CVE-2025-25663 vulnerability details – vuln.today
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