PT-2025-17542 · Totolink · Totolink A800R+5

Published

2025-04-22

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Updated

2025-04-24

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CVE-2025-28033

CVSS v2.0

7.5

High

VectorAV:N/AC:L/Au:N/C:P/I:P/A:P
Name of the Vulnerable Software and Affected Versions TOTOLINK A800R version 4.1.2cu.5137 B20200730 TOTOLINK A810R version 4.1.2cu.5182 B20201026 TOTOLINK A830R version 4.1.2cu.5182 B20201102 TOTOLINK A950RG version 4.1.2cu.5161 B20200903 TOTOLINK A3000RU version 5.9c.5185 B20201128 TOTOLINK A3100R version 4.1.2cu.5247 B20211129
Description A pre-auth buffer overflow vulnerability was found in the setNoticeCfg function through the IpTo parameter. This issue affects multiple TOTOLINK router models.
Recommendations For TOTOLINK A800R version 4.1.2cu.5137 B20200730, consider disabling the setNoticeCfg function until a patch is available. For TOTOLINK A810R version 4.1.2cu.5182 B20201026, restrict access to the IpTo parameter in the affected function to minimize the risk of exploitation. For TOTOLINK A830R version 4.1.2cu.5182 B20201102, avoid using the IpTo parameter in the setNoticeCfg function until the issue is resolved. For TOTOLINK A950RG version 4.1.2cu.5161 B20200903, temporarily disable the setNoticeCfg function to prevent potential exploitation. For TOTOLINK A3000RU version 5.9c.5185 B20201128, restrict access to the vulnerable function to minimize the risk of exploitation. For TOTOLINK A3100R version 4.1.2cu.5247 B20211129, consider disabling the setNoticeCfg function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

BDU:2025-10702
CVE-2025-28033

Affected Products

Totolink A3000Ru
Totolink A3100R
Totolink A800R
Totolink A810R
Totolink A830R
Totolink A950Rg