CVE-2025-5839

A vulnerability, which was classified as critical, has been found in Tenda AC9 15.03.02.13. Affected by this issue is the function fromadvsetlanip of the file /goform/AdvSetLanip of the component POST Request Handler. The manipulation of the argument lanMask leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://candle-throne-f75.notion.site/Tenda-AC9-fromadvsetlanip-20adf0aa11858027b7c3c2f4e44bb867	Exploit Third Party Advisory
https://vuldb.com/?ctiid.311582	Permissions Required
https://vuldb.com/?id.311582	Third Party Advisory VDB Entry
https://vuldb.com/?submit.591369	Third Party Advisory VDB Entry
https://www.tenda.com.cn/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ac9_firmware:15.03.2.13:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac9:1.0:*:*:*:*:*:*:*

History

09 Jun 2025, 19:07

Type	Values Removed	Values Added
CPE		cpe:2.3:h:tenda:ac9:1.0:::::::* cpe:2.3:o:tenda:ac9_firmware:15.03.2.13:::::::*
Summary		(es) Se ha detectado una vulnerabilidad clasificada como crítica en Tenda AC9 15.03.02.13. Este problema afecta a la función fromadvsetlanip del archivo /goform/AdvSetLanip del componente POST Request Handler. La manipulación del argumento lanMask provoca un desbordamiento del búfer. El ataque puede ejecutarse en remoto. Se ha hecho público el exploit y puede que sea utilizado.
First Time		Tenda Tenda ac9 Tenda ac9 Firmware
References	~~() https://candle-throne-f75.notion.site/Tenda-AC9-fromadvsetlanip-20adf0aa11858027b7c3c2f4e44bb867 -~~	() https://candle-throne-f75.notion.site/Tenda-AC9-fromadvsetlanip-20adf0aa11858027b7c3c2f4e44bb867 - Exploit, Third Party Advisory
References	~~() https://vuldb.com/?ctiid.311582 -~~	() https://vuldb.com/?ctiid.311582 - Permissions Required
References	~~() https://vuldb.com/?id.311582 -~~	() https://vuldb.com/?id.311582 - Third Party Advisory, VDB Entry
References	~~() https://vuldb.com/?submit.591369 -~~	() https://vuldb.com/?submit.591369 - Third Party Advisory, VDB Entry
References	~~() https://www.tenda.com.cn/ -~~	() https://www.tenda.com.cn/ - Product

07 Jun 2025, 18:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-06-07 18:15

Updated : 2025-06-09 19:07

NVD link : CVE-2025-5839

Mitre link : CVE-2025-5839

CVE.ORG link : CVE-2025-5839

JSON object : View

Products Affected

tenda

ac9
ac9_firmware

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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8.8 /10