Quick answers
- Is CVE-2026-9346 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-9346 being exploited in the wild.
- How severe is CVE-2026-9346?
- High severity, with a CVSS score of 8.8, published 24 May 2026.
- Which products and versions are affected?
- Edimax EW-7438RPn up to 1.31.
- Is there a fix for CVE-2026-9346?
- 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-2026-9346 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-9346?
- Check whether you run Edimax EW-7438RPn 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 stack-based buffer overflow exists in the 'webs' binary of the Edimax EW-7438RPn firmware (up to version 1.31). The vulnerability is located within the 'formWirelessTbl' function in the '/goform/formWirelessTbl' handler. The root cause is the unsafe copying of the 'submit-url' POST parameter into a fixed-size local stack buffer without adequate bounds checking. A remote attacker with low-privileged credentials can exploit this by sending an oversized string in the 'submit-url' argument, allowing them to overwrite the return address and achieve arbitrary code execution or cause a device crash (DoS). Public exploit code (PoC) is available, and the vendor has reportedly not responded to disclosure attempts.
Affected products
- Edimax EW-7438RPn up to 1.31
Timeline
- 2026-05-24: advisory: Initial disclosure via VulDB and NVD