SEPTEMBER 20, 2026
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Case File

CVE-2015-7871

CRITICAL · CVSS 9.8 EPSS 81.76%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2017-08-07 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Its EPSS score suggests a 81.8% probability of exploitation in the next 30 days. It may be remotely exploitable.

CVE
CVE-2015-7871
Severity
CRITICAL
CVSS
9.8
EPSS
81.76%

Original NVD Description

Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to bypass authentication.

Related CVEs

Other vulnerabilities affecting the same vendor(s)