Loading vulnerability…
CVE-2026-55990 is a denial-of-service vulnerability in NLnet Labs Unbound 1.7.0 through 1.25.1 when built with DNSCrypt support. A DNSCrypt configuration containing more provider-certificate entries than corresponding secret-key entries causes Unbound to initialize only the matched entries while subsequently iterating according to the certificate-entry count. Uninitialized trailing slots retain allocator fill data and may be treated as valid DNSCrypt configuration objects. A crafted DNSCrypt UDP packet can select such an invalid slot, causing a garbage-pointer dereference and termination of the Unbound server.
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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.