CVE-2025-63464: Totolink LR350 v9.3.5u.6369_B20220309 was discovered to contain a stack overflow via the ssid parameter in the…

CVE-2025-63464 · Severity: high · CVSS 7.5 · Published 2025-10-31

Totolink LR350 v9.3.5u.6369_B20220309 was discovered to contain a stack overflow via the ssid parameter in the sub_42396C function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

Technologies: TOTOLINK Lr350, TOTOLINK Lr350 Firmware. Vendors: TOTOLINK.

Quick answers

Is CVE-2025-63464 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-63464 being exploited in the wild.
How severe is CVE-2025-63464?
High severity, with a CVSS score of 7.5, published 31 October 2025.
Which products and versions are affected?
TOTOLINK Lr350, TOTOLINK Lr350 Firmware. The advisory does not name versions.
Is there a fix for CVE-2025-63464?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-63464?
Check whether you run TOTOLINK Lr350 or TOTOLINK Lr350 Firmware. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • TOTOLINK Lr350
  • TOTOLINK Lr350 Firmware

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