CVE-2026-25833

CVE-2026-25833 affects Mbed TLS; a buffer overflow exists in the x509_inet_pton_ipv6() function. Vulnerable versions are 3.5.0–3.6.5. The issue is fixed in 3.6.6 and in 4.1.0. Remediate by upgrading to one of these fixed releases. No exploitation details are provided in the available documents.