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Vulnerabilities

Vulnerability · CVE-2023-21715

Microsoft Office Publisher Security Feature Bypass Vulnerability

Published Feb 14, 2023 · catalog updated Aug 19, 2026 · Microsoft Office

Patch now

CVE-2023-21715 is in the CISA known-exploited catalog, due Mar 7, 2023. Confirm Microsoft Office against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High7.3
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
12.01%
Remediation
Remediation guidance
Affected products
cpe microsoft/365 apps · vendor Microsoft Office

Microsoft Office Publisher contains a security feature bypass vulnerability that allows for a local, authenticated attack on a targeted system.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/365 appsversion unspecified
  • vendor Microsoft Officeversion unspecified

How to fix CVE-2023-21715

What to do

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

Should you patch?

CVE-2023-21715 is in the CISA known-exploited catalog, due Mar 7, 2023. Confirm Microsoft Office against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-863: Incorrect Authorization. EPSS 12.01%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

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. Feb 14, 2023 · Catalog

    Detected

    Microsoft Office Publisher contains a security feature bypass vulnerability that allows for a local, authenticated attack on a targeted system.

  2. Feb 14, 2023 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Mar 7, 2023 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Aug 19, 2026 · Catalog

    Updated

    Microsoft Office Publisher contains a security feature bypass vulnerability that allows for a local, authenticated attack on a targeted system.

Sources

  • CISA KEVConfirmed exploitationCVE-2023-21715

    Microsoft Office Publisher contains a security feature bypass vulnerability that allows for a local, authenticated attack on a targeted system.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2023-21715

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-21715

    30-day exploitation probability 12.0%

    first.org
  • NIST NVDVulnerability recordCVE-2023-21715

    Microsoft Publisher Security Feature Bypass Vulnerability

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2023-21715

    Microsoft Office Publisher contains a security feature bypass vulnerability that allows for a local, authenticated attack on a targeted system.

    vulncheck.com

References

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.