HIGH SEVERITY

CVE-2016-6384

Ios vulnerability

CVSS
7.5
EPSS
4.2%
EPSS pct
90th
Exploited
No known
Cisco IOS 12.2 through 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.17 and 16.2 allow remote attackers to cause a denial of service (device reload) via crafted fields in an H.323 message, aka Bug ID CSCux04257.
Affected vendor
Cisco
Affected product
Ios
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-20 — Improper Input Validation
Published
2016-10-05

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 4.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2016-6384

  • Confirm whether Cisco Ios is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2016-6384.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-6384

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