CVE-2025-63469: High severity TOTOLINK LR350 vulnerability
Published Oct 31, 2025
·Updated
Totolink LR350 v9.3.5u.6369B20220309 was discovered to contain a stack overflow via the ssid parameter in the sub421BAC function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.
Affected Software
3 affected components
TOTOLINK LR350
All of the following
TOTOLINK Lr350 Firmware=9.3.5u.6369_b20220309
TOTOLINK LR350
Event History
Oct 31, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·04:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2025-63469?
CVE-2025-63469 has a high severity rating due to its potential to cause Denial of Service (DoS).
2
How do I fix CVE-2025-63469?
To fix CVE-2025-63469, update your Totolink LR350 router firmware to the latest version provided by the vendor.
3
What type of vulnerability is CVE-2025-63469?
CVE-2025-63469 is a stack overflow vulnerability that can be exploited via a crafted request.
4
What impact does CVE-2025-63469 have on affected systems?
The impact of CVE-2025-63469 on affected systems is a potential Denial of Service (DoS), rendering the device unusable.
5
Which devices are affected by CVE-2025-63469?
CVE-2025-63469 specifically affects the Totolink LR350 running the version v9.3.5u.6369_B20220309.