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CVE-2024-21412

Microsoft Windows Internet Shortcut Files Security Feature Bypass

8.1 HIGHActively exploited (CISA KEV)Used in ransomwareEPSS 99.4%
  1. Published13 Feb 2024
  2. Added to CISA KEV13 Feb 2024
  3. Remediation due5 Mar 2024
Actively exploited (CISA KEV)

Microsoft Windows Internet Shortcut Files contains an unspecified vulnerability that allows for a security feature bypass.

Added to KEV: 13 Feb 2024Federal remediation due: 5 Mar 2024Used in ransomware

Description

Internet Shortcut Files Security Feature Bypass Vulnerability

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected products

Microsoft Windows 10 1809< 10.0.17763.5458
Microsoft Windows 10 21h2< 10.0.19044.4046
Microsoft Windows 10 22h2< 10.0.19045.4046
Microsoft Windows 11 21h2< 10.0.22000.2777
Microsoft Windows 11 22h2< 10.0.22621.3155
Microsoft Windows 11 23h2< 10.0.22631.3155
Microsoft Windows Server 2019< 10.0.17763.5458
Microsoft Windows Server 2022< 10.0.20348.2322
Microsoft Windows Server 2022 23h2< 10.0.25398.709

Remediation

Fixed in
Microsoft Windows 10 1809≥ 10.0.17763.5458
Microsoft Windows 10 21h2≥ 10.0.19044.4046
Microsoft Windows 10 22h2≥ 10.0.19045.4046
Microsoft Windows 11 21h2≥ 10.0.22000.2777
Microsoft Windows 11 22h2≥ 10.0.22621.3155
Microsoft Windows 11 23h2≥ 10.0.22631.3155
Microsoft Windows Server 2019≥ 10.0.17763.5458
Microsoft Windows Server 2022≥ 10.0.20348.2322
Microsoft Windows Server 2022 23h2≥ 10.0.25398.709

Frequently asked

Is CVE-2024-21412 being actively exploited?

Yes. CVE-2024-21412 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 13 Feb 2024. It has been used in ransomware campaigns.

How severe is CVE-2024-21412?

CVE-2024-21412 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 99.4% probability of exploitation.

Which products are affected by CVE-2024-21412?

Affected products include Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2, Microsoft Windows 11 22h2, and 4 more.

How do I fix CVE-2024-21412?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1809 10.0.17763.5458, Microsoft Windows 10 21h2 10.0.19044.4046, Microsoft Windows 10 22h2 10.0.19045.4046 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-21412 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.