CVE-2025-55603

HIGH
2025-08-22 [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 28, 2026 - 19:08 vuln.today
PoC Detected
Sep 26, 2025 - 12:53 vuln.today
Public exploit code
CVE Published
Aug 22, 2025 - 16:15 nvd
HIGH 7.5

Tags

Buffer Overflow Tenda Ax3 Firmware

Description

Tenda AX3 V16.03.12.10_CN is vulnerable to Buffer Overflow in the fromSetSysTime function via the ntpServer parameter.

Analysis

Tenda AX3 V16.03.12.10_CN is vulnerable to Buffer Overflow in the fromSetSysTime function via the ntpServer parameter. Rated high severity (CVSS 7.5), 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 Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Tenda AX3 V16.03.12.10_CN is vulnerable to Buffer Overflow in the fromSetSysTime function via the ntpServer parameter. Affected products include: Tenda Ax3 Firmware.

Affected Products

Tenda Ax3 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

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

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CVE-2025-55603 vulnerability details – vuln.today
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