CVE-2026-26731

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

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

Tags

Buffer Overflow Memory Corruption A3002ru Firmware

Description

TOTOLINK A3002RU V2.1.1-B20211108.1455 was discovered to contain a stack-based buffer overflow via the routernamer`parameter in the formDnsv6 function.

Analysis

Remote code execution in TOTOLIK A3002RU V2.1.1 firmware results from a stack-based buffer overflow in the DNS configuration function that can be exploited by authenticated network users. Public exploit code exists for this vulnerability, and attackers with valid credentials can achieve full system compromise including code execution and data manipulation. …

Sign in for full analysis, threat intelligence, and remediation guidance.

Remediation

Within 24 hours: Identify and inventory all TOTOLINK A3002RU V2.1.1-B20211108.1455 devices in the network and isolate affected units from critical systems. Within 7 days: Implement network segmentation to restrict router management access, disable remote administration features if enabled, and deploy WAF rules to block malicious formDnsv6 requests. …

Sign in for detailed remediation steps.

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Sign in - Free

Priority Score

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

Share

CVE-2026-26731 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy