CVE-2026-82539

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.

CVSS v3 9.1 CRITICAL
CVSS v2.0 8.3 HIGH

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

8.3^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:M/C:C/I:C/A:C

Exploitability : 6.4 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication MULTIPLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/Xernary/CVE-2026-82539
https://vuldb.com/cve/CVE-2026-82539
https://vuldb.com/submit/888696
https://vuldb.com/vuln/397055
https://vuldb.com/vuln/397055/cti
https://www.totolink.net/

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-30 11:17

Updated : 2026-09-01 19:17

NVD link : CVE-2026-82539

Mitre link : CVE-2026-82539

CVE.ORG link : CVE-2026-82539

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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