THREATPORT/VULNERABILITY/CVE-2015-7849
HIGH SEVERITY

CVE-2015-7849

Ntp vulnerability

CVSS
8.8
EPSS
16.8%
EPSS pct
97th
Exploited
No known
Use-after-free vulnerability in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to possibly execute arbitrary code or cause a denial of service (crash) via crafted packets.
Affected vendor
Ntp
Affected product
Ntp
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2017-08-07

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 16.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2015-7849

  • Confirm whether Ntp Ntp is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2015-7849.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-7849

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-7849 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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