CVE-2026-26736

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 09, 2026 - 17:16 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_V3 V3.0.0-B20220304.1804 was discovered to contain a stack-based buffer overflow via the static_ipv6 parameter in the formIpv6Setup function.

Analysis

Stack-based buffer overflow in TOTOLIK A3002RU firmware versions up to V3.0.0-B20220304.1804 allows authenticated attackers to achieve remote code execution through a malicious static_ipv6 parameter. Public exploit code exists for this vulnerability, and no patch is currently available. …

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Remediation

Within 24 hours: Inventory all TOTOLINK A3002RU_V3 devices in production and isolate or restrict network access if possible. Within 7 days: Implement network segmentation to limit router access to trusted administrative sources only, disable IPv6 configuration interfaces if not required, and monitor for exploitation attempts. …

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Priority Score

64
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +44
POC: +20

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CVE-2026-26736 vulnerability details – vuln.today
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