Microsoft Publisher Protection Mechanism Failure Vulnerability

Are you affected?

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• cpe microsoft/office 2019version unspecified
• cpe microsoft/office long term servicing channel2021
• cpe microsoft/publisher2016
• vendor Microsoft Publisherversion unspecified

How to fix CVE-2024-38226

• Recommended remediation

  Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA due date Oct 1, 2024.

• Official advisories

  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov
  • VulnCheck KEV · vulncheck.com

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Sep 10, 2024 · Catalog

   Detected

   Microsoft Publisher contains a protection mechanism failure vulnerability that allows attacker to bypass Office macro policies used to block untrusted or malicious files.

2. Sep 10, 2024 · CISA KEV

   Known exploited

   Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

3. Oct 1, 2024 · CISA KEV

   Remediation due

   Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

4. Aug 10, 2026 · Catalog

   Updated

   Microsoft Publisher contains a protection mechanism failure vulnerability that allows attacker to bypass Office macro policies used to block untrusted or malicious files.

Sources

• CISA KEVConfirmed exploitationCVE-2024-38226

  Microsoft Publisher contains a protection mechanism failure vulnerability that allows attacker to bypass Office macro policies used to block untrusted or malicious files.

  cisa.gov
• CVE.orgVulnerability recordCVE-2024-38226

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2024-38226

  30-day exploitation probability 2.7%

  first.org
• NIST NVDVulnerability recordCVE-2024-38226

  Microsoft Publisher Security Feature Bypass Vulnerability

  nvd.nist.gov
• VulnCheck KEVConfirmed exploitationCVE-2024-38226

  Microsoft Publisher contains a protection mechanism failure vulnerability that allows attacker to bypass Office macro policies used to block untrusted or malicious files.

  vulncheck.com

References

• VulnCheck exploitation evidence · api.msrc.microsoft.com
• CISA note · msrc.microsoft.com
• CISA note · nvd.nist.gov
• US Government Resource · cisa.gov
• VulnCheck exploitation evidence · cisa.gov
• VulnCheck exploitation evidence · enisa.europa.eu
• VulnCheck exploitation evidence · zerodayinitiative.com

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.