High severity · published Jun 7, 2025
CVE-2025-5839
Tenda AC9 POST Request AdvSetLanip fromadvsetlanip buffer overflow
8.8
CVSS
1%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
AC9 · Tenda
15.03.02.13 · source: vendor
AF
Ac9 Firmware · Tenda
15.03.2.13 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-5839
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-5839
Exploit
https://candle-throne-f75.notion.site/Tenda-AC9-fromadvsetlanip-20adf0aa11858027b7c3c2f4e44bb867
Permissions Required
https://vuldb.com/?ctiid.311582
Third Party Advisory
https://vuldb.com/?id.311582
Third Party Advisory
https://vuldb.com/?submit.591369
Product
https://www.tenda.com.cn/
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