A vulnerability categorized as critical has been discovered in Zyxel NWA1100-N 1.00(AACE.1)C0 . The impacted element is the function formWep/formWlAc/formPasswordSetup/formUpgradeCert/formDelcert of the component HTTP Handler . Such manipulation leads to buffer overflow. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is referenced as CVE-2026-7287 . It is possible to launch the attack remotely. No exploit is available. It is advisable