CVE-2026-26732

HIGH
2026-02-17 [email protected]
8.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Mar 11, 2026 - 16:16 vuln.today
Public exploit code
CVE Published
Feb 17, 2026 - 19:21 nvd
HIGH 8.8

Tags

Buffer Overflow Stack Overflow A3002ru Firmware

Description

TOTOLINK A3002RU V2.1.1-B20211108.1455 was discovered to contain a stack-based buffer overflow via the vpnUser or vpnPassword` parameters in the formFilter function.

Analysis

Stack overflow vulnerabilities in TOTOLIK A3002RU V2.1.1 router firmware allow authenticated attackers to achieve remote code execution through malformed vpnUser or vpnPassword parameters. Public exploit code exists for this vulnerability, and no patch is currently available, leaving affected devices at risk of complete compromise.

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Remediation

Within 24 hours: Identify all TOTOLINK A3002RU V2.1.1-B20211108.1455 devices in your network inventory and isolate affected units from critical systems. Within 7 days: Implement network segmentation to restrict VPN traffic to this device, disable VPN functionality if not operationally required, and deploy WAF rules blocking malformed vpnUser/vpnPassword requests. …

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Priority Score

64
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: +20

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CVE-2026-26732 vulnerability details – vuln.today
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