CVE-2025-25662

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

2
Analysis Generated
Mar 28, 2026 - 18:27 vuln.today
CVE Published
Feb 20, 2025 - 23:15 nvd
CRITICAL 9.8

Tags

Tenda Buffer Overflow O4 Firmware

Description

Tenda O4 V3.0 V1.0.0.10(2936) is vulnerable to Buffer Overflow in the function SafeSetMacFilter of the file /goform/setMacFilterList via the argument remark/type/time.

Analysis

Tenda O4 V3.0 V1.0.0.10(2936) is vulnerable to Buffer Overflow in the function SafeSetMacFilter of the file /goform/setMacFilterList via the argument remark/type/time. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Tenda O4 V3.0 V1.0.0.10(2936) is vulnerable to Buffer Overflow in the function SafeSetMacFilter of the file /goform/setMacFilterList via the argument remark/type/time. Affected products include: Tenda O4 Firmware.

Affected Products

Tenda O4 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

Priority Score

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

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CVE-2025-25662 vulnerability details – vuln.today
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