Quick answers
- Is CVE-2026-93740 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-93740 being exploited in the wild.
- How severe is CVE-2026-93740?
- Critical severity, with a CVSS score of 10, published 18 September 2026.
- Which products and versions are affected?
- TOTOLINK A3002MU Hh-B20211125.1046.
- Is there a fix for CVE-2026-93740?
- 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-2026-93740 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-93740?
- 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 formWlEncrypt function of the /bin/boa web server, triggered by the submit-url parameter which is copied into a fixed-size buffer without proper length validation. An unauthenticated remote attacker can exploit this via a POST request to /boafrm/formWlEncrypt with an oversized submit-url value, causing a denial-of-service condition and potentially achieving remote code execution.
Affected products
- Totolink A3002MU Hh-B20211125.1046
Timeline
- 2026-09-18: disclosed