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CVE-2015-7855 is a denial-of-service vulnerability in the decodenetnum function of ntpd. It affects NTP 4.2.x before 4.2.8p4 and 4.3.x before 4.3.77. A remote attacker can trigger an assertion failure by sending a crafted mode 6 or mode 7 NTP control packet containing an overly long data value. When the vulnerable code processes the malformed input, ntpd aborts, causing the service to terminate.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
2 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.