CVE-2026-82539

TOTOLINK A720R MAC Filtering cstecgi.cgi setMacFilterRules memory corruption

Published: Aug 30, 2026Updated: Sep 1, 2026 Sources: CVE List NVDCWE-119

9.1CRITICAL

Description

A vulnerability was determined in TOTOLINK A720R 4.1.5cu.630_B20250509. This impacts the function setMacFilterRules of the file cstecgi.cgi of the component MAC Filtering. Executing a manipulation of the argument desc can lead to memory corruption. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:HPrivileges Required

High

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-119

Affected Products

TOTOLINK

commercial·TWaka totolink corp.

A720R

Networking Infrastructure

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

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References

https://vuldb.com/vuln/397055

vuldb.com

https://vuldb.com/vuln/397055/cti

vuldb.com

https://vuldb.com/cve/CVE-2026-82539

vuldb.com

and 3 more references View all →

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