THREATPORT/VULNERABILITY/CVE-2021-36958
HIGH SEVERITY

CVE-2021-36958

Windows vulnerability

CVSS
7.8
EPSS
31.7%
EPSS pct
98th
Exploited
No known
<p>A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p>
Affected vendor
Microsoft
Affected product
Windows
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2021-08-12

Risk analysis

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

Its EPSS score of 31.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2021-36958

  • Confirm whether Microsoft Windows is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-36958.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-36958

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-36958 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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