Buffer Overflow Vulnerability in TOTOLINK A702R and A3002 Series Routers
CVE-2025-4823

8.7HIGH

Key Information:

Vendor

Totolink
Status
A702r
A3002r
A3002ru
Vendor
CVE Published:
17 May 2025

Badges

👾 Exploit Exists

What is CVE-2025-4823?

A vulnerability exists in the TOTOLINK A702R, A3002R, and A3002RU routers due to a flaw in the 'submit-url' function of the HTTP POST Request Handler. This issue allows for the exploitation of a buffer overflow, enabling remote attackers to execute code or manipulate the affected devices. As the exploit has been disclosed publicly, it poses a significant risk to users of these routers, necessitating immediate attention for mitigation.

Affected Version(s)

A3002R 3.0.0-B20230809.1615

A3002RU 3.0.0-B20230809.1615

A702R 3.0.0-B20230809.1615

References

https://vuldb.com/?id.309284
vdb-entrytechnical-description
https://vuldb.com/?ctiid.309284
signaturepermissions-required
https://vuldb.com/?submit.574593
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

CH13hh (VulDB User)
.
CVE-2025-4823 : Buffer Overflow Vulnerability in TOTOLINK A702R and A3002 Series Routers