THREATPORT/VULNERABILITY/CVE-2016-2147
HIGH SEVERITY

CVE-2016-2147

Busybox vulnerability

CVSS
7.5
EPSS
8.1%
EPSS pct
94th
Exploited
No known
Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds heap write.
Affected vendor
Busybox
Affected product
Busybox
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-190 — Integer Overflow or Wraparound
Published
2017-02-09

Risk analysis

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

Its EPSS score of 8.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2016-2147

  • Confirm whether Busybox Busybox is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2016-2147.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-2147

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-2147 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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