What is CVE-2026-53921?
CVE-2026-53921 is a critical stack overflow vulnerability in OpenWrt's DHCPv6 service. It allows an unauthenticated remote attacker to execute code as root on default installations. Users should update to OpenWrt version 24.10.8.
Azərbaycanca: CVE-2026-53921 OpenWrt-in DHCPv6 xidmətində kritik stack overflow zəifliyidir. Autentifikasiya olunmamış uzaq hücumçuya standart quraşdırmada root səviyyəsində kod icrası imkanı verir. OpenWrt 24.10.8 versiyasına yeniləmək tövsiyə olunur.
Related CVEs
link basis: same weakness class CWE-119
FAQ2
In which service was CVE-2026-53921 discovered?
CVE-2026-53921 is a critical stack overflow vulnerability discovered in OpenWrt's DHCPv6 service.
What should I do to protect against CVE-2026-53921?
Users should update to OpenWrt version 24.10.8.
See also6
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.