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CVE-2023-36584

Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass

5.4 MEDIUMActively exploited (CISA KEV)EPSS 3.06%
  1. Published10 Oct 2023
  2. Added to CISA KEV16 Nov 2023
  3. Remediation due7 Dec 2023
Actively exploited (CISA KEV)

Microsoft Windows Mark of the Web (MOTW) contains a security feature bypass vulnerability resulting in a limited loss of integrity and availability of security features.

Added to KEV: 16 Nov 2023Federal remediation due: 7 Dec 2023

Description

Windows Mark of the Web Security Feature Bypass Vulnerability

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

Affected products

Microsoft Windows 10 1507< 10.0.10240.20232
Microsoft Windows 10 1809< 10.0.17763.4974
Microsoft Windows 10 21h1< 10.0.19041.3570
Microsoft Windows 10 22h2< 10.0.19041.3570
Microsoft Windows 11 21h2< 10.0.22000.2538
Microsoft Windows 11 22h2< 10.0.22621.2428
Microsoft Windows Server 2008r2
Microsoft Windows Server 2012r2
Microsoft Windows Server 2016< 10.0.14393.6351
Microsoft Windows Server 2019< 10.0.17763.4974
Microsoft Windows Server 2022< 10.0.20348.2031

Remediation

Fixed in
Microsoft Windows 10 1507≥ 10.0.10240.20232
Microsoft Windows 10 1809≥ 10.0.17763.4974
Microsoft Windows 10 21h1≥ 10.0.19041.3570
Microsoft Windows 10 22h2≥ 10.0.19041.3570
Microsoft Windows 11 21h2≥ 10.0.22000.2538
Microsoft Windows 11 22h2≥ 10.0.22621.2428
Microsoft Windows Server 2016≥ 10.0.14393.6351
Microsoft Windows Server 2019≥ 10.0.17763.4974
Microsoft Windows Server 2022≥ 10.0.20348.2031

References

Frequently asked

Is CVE-2023-36584 being actively exploited?

Yes. CVE-2023-36584 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 16 Nov 2023.

How severe is CVE-2023-36584?

CVE-2023-36584 has a CVSS 3.1 base score of 5.4, rated medium. EPSS estimates a 3.06% probability of exploitation.

Which products are affected by CVE-2023-36584?

Affected products include Microsoft Windows 10 1507, Microsoft Windows 10 1809, Microsoft Windows 10 21h1, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2, and 6 more.

How do I fix CVE-2023-36584?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1507 10.0.10240.20232, Microsoft Windows 10 1809 10.0.17763.4974, Microsoft Windows 10 21h1 10.0.19041.3570 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-36584 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.