CVE-2026-76692

CVE-2026-76692 is a flaw in HPE Networking EdgeConnect SD-WAN Gateways that lets an unauthenticated attacker on an adjacent network (i.e., able to reach the gateway directly, such as a compromised peer or an on-segment host) read limited uninitialized stack memory and disrupt the affected service. Triggering the flaw causes the gateway service to crash, producing a denial of service, and may leak remnants of uninitialized stack memory to the attacker. The impact is availability loss (system crash) plus low confidentiality impact (limited information disclosure); no code execution or integrity impact is described. Affected products are HPE Networking EdgeConnect SD-WAN Gateway appliances; the advisory does not enumerate specific firmware versions. No public proof-of-concept exists and the flaw is not on the CISA KEV catalog, so exploitation in the wild is not indicated.

What to do: Review the HPE security bulletin for CVE-2026-76692 and upgrade affected EdgeConnect SD-WAN Gateway appliances to the fixed firmware version it specifies. Restrict which hosts and peers can reach gateway control/data interfaces at the network layer so only trusted adjacent systems communicate with the appliance. Monitor gateways for unexpected service crashes or restarts, which would be the primary indicator of exploitation attempts.