CVE-2026-81738 | OpenVPN up to 2.7.6 tap-windows6 DOMAIN-SEARCH out-of-bounds write (EUVD-2026-72278)

A vulnerability classified as very critical was found in OpenVPN up to 2.7.6. This impacts an unknown function of the component tap-windows6. Such manipulation of the argument DOMAIN-SEARCH leads to out-of-bounds write. This vulnerability is listed as CVE-2026-81738. The attack may be performed from remote. There is no available exploit.