ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-70276

Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

Published Oct 13, 2026 · catalog updated Oct 15, 2026 · 365 apps

Check if you run it

No confirmed exploitation is on record for CVE-2026-70276. EPSS is 0.25%. Act only if a listed version of 365 apps is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.25%
Remediation
Advisory link
Affected products
cpe microsoft/365 apps · cpe microsoft/office 2021 · cpe microsoft/office 2024

Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

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
  • cpe microsoft/office 2021version unspecified
  • cpe microsoft/office 2024version unspecified

How to fix CVE-2026-70276

What to do

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

Should you patch?

No confirmed exploitation is on record for CVE-2026-70276. EPSS is 0.25%. Act only if a listed version of 365 apps is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-416: Use After Free. EPSS 0.25%. There is no CISA KEV listing. 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. Oct 13, 2026 · NCSC Netherlands

    Detected

    Microsoft heeft xxx kwetsbaarheden verholpen in diverse Office producten, zoals Word, Excel, Access, Outlook, Visio, Sharepoint en PowerPoint, maar ook subcomponenten als Shell, Azure Key Vault en Click-to-Run. Een kwaadwillende kan de kwetsbaarheden misbruiken om een Denial-of-Service te veroorzaken, zich verhoogde rechten toe te kennen, willekeurige code uit te voeren en toegang te krijgen tot g

  2. Oct 15, 2026 · NIST NVD

    Updated

    Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

Sources

  • CVE.orgVulnerability recordCVE-2026-70276

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-70276

    30-day exploitation probability 0.3%

    first.org
  • NCSC NetherlandsGovernment advisoryCVE-2026-70276

    Microsoft heeft xxx kwetsbaarheden verholpen in diverse Office producten, zoals Word, Excel, Access, Outlook, Visio, Sharepoint en PowerPoint, maar ook subcomponenten als Shell, Azure Key Vault en Click-to-Run. Een kwaadwillende kan de kwetsbaarheden misbruiken om een Denial-of-S

    advisories.ncsc.nl
  • NIST NVDVulnerability recordCVE-2026-70276

    Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.