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CVE-2025-8139

TOTOLINK A702R HTTP POST Request formPortFw buffer overflow

Published: Jul 25, 2025Updated: Jul 28, 2025 Sources: CVE List NVD BDUCWE-119
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.9%
Top 43.9%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

A vulnerability was found in TOTOLINK A702R 4.0.0-B20230721.1521. It has been classified as critical. This affects an unknown part of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119CWE-120

Affected Products

a702r firmwaretotolinkNetworking Infrastructure
A702RTOTOLinkNetworking Infrastructure
A702RTOTOLINKNetworking Infrastructure
totolinkcommercialTWNetworking Infrastructureaka totolink corp.

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/panda666-888/vuls/blob/main/totolink/a702r/formPortFw.md
github.com
https://vuldb.com/?ctiid.317535
vuldb.com
https://vuldb.com/?id.317535
vuldb.com
and 4 more references View all →

Timeline

Published
Jul 25, 2025
Last Updated
Jul 28, 2025

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