THREATPORT/VULNERABILITY/CVE-2018-20817
CRITICAL SEVERITY

CVE-2018-20817

Call Of Duty\ vulnerability

CVSS
9.8
EPSS
3.6%
EPSS pct
88th
Exploited
No known
SV_SteamAuthClient in various Activision Infinity Ward Call of Duty games before 2015-08-11 is missing a size check when reading authBlob data into a buffer, which allows one to execute code on the remote target machine when sending a steam authentication request. This affects Call of Duty: Modern Warfare 2, Call of Duty: Modern Warfare 3, Call of Duty: Ghosts, Call of Duty: Advanced Warfare, Call of Duty: Black Ops 1, and Call of Duty: Black Ops 2.
Affected vendor
Activision
Affected product
Call Of Duty\
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2019-04-19

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 confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2018-20817

  • Confirm whether Activision Call Of Duty\ is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-20817.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-20817

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-20817 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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