CVE-2026-0641

MEDIUM
2026-01-06 [email protected]
6.3
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 22, 2026 - 17:32 vuln.today
Public exploit code
CVE Published
Jan 06, 2026 - 19:16 nvd
MEDIUM 6.3

Tags

Command Injection Wa300 Firmware

Description

A security vulnerability has been detected in TOTOLINK WA300 5.2cu.7112_B20190227. This vulnerability affects the function sub_401510 of the file cstecgi.cgi. The manipulation of the argument UPLOAD_FILENAME leads to command injection. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.

Analysis

Command injection in TOTOLINK WA300 firmware (version 5.2cu.7112_B20190227 and earlier) allows authenticated remote attackers to execute arbitrary commands through a malformed UPLOAD_FILENAME parameter in the cstecgi.cgi function. Public exploit code exists for this vulnerability, and no patch is currently available.

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

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Priority Score

55
Low Medium High Critical
KEV: 0
EPSS: +3.1
CVSS: +32
POC: +20

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CVE-2026-0641 vulnerability details – vuln.today
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