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CVE-2015-7871 is an authentication bypass vulnerability in ntpd affecting NTP 4.2.x before 4.2.8p4 and 4.3.x before 4.3.77. The issue is triggered by Crypto-NAK packets, which can be used by a remote attacker to interfere with the authentication mechanism and cause ntpd to accept unauthenticated conditions that should have been rejected. Based on the provided description, the flaw resides in the handling of Crypto-NAK packets within ntpd's authentication logic, enabling bypass of expected authentication protections.
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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.
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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.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.