Quick answers
- Is CVE-2026-93738 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-93738 being exploited in the wild.
- How severe is CVE-2026-93738?
- Critical severity, with a CVSS score of 9.9, published 18 September 2026.
- Which products and versions are affected?
- TOTOLINK A3002MU Hh-B20211125.1046.
- Is there a fix for CVE-2026-93738?
- 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.
- How is CVE-2026-93738 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-93738?
- Check whether you run TOTOLINK A3002MU at an affected version. 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.
Technical details
A buffer overflow exists in the /boafrm/formSchedule endpoint of the Boa web server, where the webpage parameter is copied into a fixed-size buffer without proper length validation. An attacker can send an HTTP POST request with an oversized webpage parameter value to overflow the buffer and corrupt adjacent memory, crashing the Boa process. This results in denial of service, preventing legitimate access to the router's management interface.
Affected products
- Totolink A3002MU Hh-B20211125.1046
Timeline
- 2026-09-18: disclosed
- other: Public exploit published