CVE-2026-28387: Azure DANE Client Use-After-Free Flaw

🟠 High | Source: Microsoft Security Response Center CVE-2026-28387 is a use-after-free vulnerability identified in DANE (DNS-based Authentication of Named Entities) client code, which could allow an attacker to execute arbitrary code or cause a crash by exploiting improper memory management. DANE is used to validate TLS certificates via DNSSEC, meaning this flaw sits within a trust and authentication mechanism. If exploited, the impact could range from denial of service to remote code execution depending on the context in which the vulnerable code runs. ...

18 June 2025 · ZX Cloud Security

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