CVE-2025-28221

HIGH
2025-03-28 [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

2
Analysis Generated
Mar 28, 2026 - 18:33 vuln.today
CVE Published
Mar 28, 2025 - 14:15 nvd
HIGH 7.5

Tags

Tenda Buffer Overflow W6 S Firmware

Description

Tenda W6_S v1.0.0.4_510 has a Buffer Overflow vulnerability in the set_local_time function, which allows remote attackers to cause web server crash via parameter time passed to the binary through a POST request.

Analysis

Tenda W6_S v1.0.0.4_510 has a Buffer Overflow vulnerability in the set_local_time function, which allows remote attackers to cause web server crash via parameter time passed to the binary through a. Rated high severity (CVSS 7.5), 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 W6_S v1.0.0.4_510 has a Buffer Overflow vulnerability in the set_local_time function, which allows remote attackers to cause web server crash via parameter time passed to the binary through a POST request. Affected products include: Tenda W6-S Firmware.

Affected Products

Tenda W6-S 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

38
Low Medium High Critical
KEV: 0
EPSS: +0.6
CVSS: +38
POC: 0

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CVE-2025-28221 vulnerability details – vuln.today
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