CVE-2025-45841

CRITICAL
2025-05-08 [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 - 18:40 vuln.today
PoC Detected
May 16, 2025 - 15:39 vuln.today
Public exploit code
CVE Published
May 08, 2025 - 16:15 nvd
CRITICAL 9.8

Tags

Memory Corruption Buffer Overflow Nr1800x Firmware TOTOLINK

Description

TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the text parameter in the setSmsCfg function.

Analysis

TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the text parameter in the setSmsCfg function. 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. TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the text parameter in the setSmsCfg function. Affected products include: Totolink Nr1800X Firmware.

Affected Products

Totolink Nr1800X 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: +0.4
CVSS: +49
POC: +20

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CVE-2025-45841 vulnerability details – vuln.today
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