Loading vulnerability…
CVE-2026-50046 is a use-after-free vulnerability in NLnet Labs Unbound affecting versions 1.15.0 through 1.25.1. The flaw occurs in DNS-over-TLS forwarding or stub query handling when the TLS server name associated with a forwarded query is owned by a serviced_query structure but is also referenced by a waiting_tcp structure during upstream DoT connection setup. If the serviced_query is jostled out of the mesh while the DoT TCP/TLS stream is still in the handshake phase, the underlying server-name storage can be freed while a stale reference remains. If the TLS stream subsequently encounters an error and the error path dereferences that stale pointer, Unbound performs a read from freed heap memory. The dereference is described as read-only, and the practical outcome is process termination rather than controlled code execution.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.