CVE-2024-38226
HighExploitedPublic exploitMicrosoft Publisher Security Feature Bypass Vulnerability
Published Sep 11, 2024 · Updated Aug 10, 2026 · Also known as TR-24-1428
Key Facts
Patch immediately- CVE-2024-38226 is a high-severity vulnerability (CVSS 7.3 v3.1) affecting Office 2019 (Microsoft), Office Long Term Servicing Channel (Microsoft), Publisher (Microsoft) and 2 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 10, 2024. Public exploit code is available.
- EPSS estimates a 2.7% probability of exploitation in the next 30 days.
- Fixed versions are available, including Office 2019 https://aka.ms/OfficeSecurityReleases, Microsoft Office LTSC 2021 https://aka.ms/OfficeSecurityReleases, Microsoft Publisher 2016 16.0.5465.1001.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
2.7%
Higher than 85.4% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2024-38226 brief as a PDF
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Description
Microsoft Publisher Security Feature Bypass Vulnerability
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Sep 10, 2024 | Oct 1, 2024 | Not reported |
| Industry KEV feed | Sep 10, 2024 | Oct 1, 2024 | Not reported |
| CIRCL KEV | Sep 10, 2024 | Oct 1, 2024 | Not reported |
| ENISA EUVD | Sep 10, 2024 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected Products
9 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Office 2019Microsoft | >= 19.0.0 | https://aka.ms/OfficeSecurityReleases |
| Office Long Term Servicing ChannelMicrosoft | 2021 | n/a |
| PublisherMicrosoft | 2016 | n/a |
| Microsoft Office LTSC 2021 | >= 16.0.1 | https://aka.ms/OfficeSecurityReleases |
| Microsoft Publisher 2016 | >= 16.0.0 | 16.0.5465.1001 |
Patched Releases
Office 2019
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2021
https://aka.ms/OfficeSecurityReleases
Microsoft Publisher 2016
16.0.5465.1001
Timeline
Added to CISA KEV
Sep 10, 2024
Added to Industry KEV feed
Sep 10, 2024
Added to CIRCL KEV
Sep 10, 2024
Added to ENISA EUVD
Sep 10, 2024
Publicly disclosed
Sep 11, 2024
Last updated
Aug 10, 2026
Weakness Type
- CWE-693 Protection Mechanism Failure
References
- advisoryMicrosoft Publisher Security Feature Bypass Vulnerability
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2024-38226
- advisoryUSOM advisory
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Microsoft Publisher Security Feature Bypass Vulnerability
Affected: Office 2019 (Microsoft) versions >= 19.0.0; Office Long Term Servicing Channel (Microsoft) versions 2021; Publisher (Microsoft) versions 2016, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 10, 2024.
Yes. It was added on Sep 10, 2024 with a federal remediation due date of Oct 1, 2024.
Public exploit code is available.
Fixed versions are available, including Office 2019 https://aka.ms/OfficeSecurityReleases, Microsoft Office LTSC 2021 https://aka.ms/OfficeSecurityReleases, Microsoft Publisher 2016 16.0.5465.1001.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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