High severity · published Jul 25, 2025
CVE-2025-8137
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20230721.1521 and classified as critical
8.8
CVSS
1.2%
EPSS
No
On KEV
Description
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20230721.1521 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formIpQoS of the component HTTP POST Request Handler. The manipulation of the argument mac leads to buffer overflow. The attack can 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)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
A702r Firmware · Totolink
4.0.0-b20230721.1521 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-8137
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-8137
Exploit
https://github.com/panda666-888/vuls/blob/main/totolink/a702r/formIpQoS.md
Permissions Required
https://vuldb.com/?ctiid.317533
Third Party Advisory
https://vuldb.com/?id.317533
Third Party Advisory
https://vuldb.com/?submit.620483
Product
https://www.totolink.net/
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