Vulnerability · CVE-2026-20948
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Published Jan 13, 2026 · catalog updated Jul 30, 2026 · 365 apps
Last checked Nov 2, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-20948. EPSS is 0.60%. Act only if a listed version of 365 apps is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
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- Severity
- High7.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.60%
- Remediation
- Version ranges on file
- Affected products
- cpe microsoft/365 apps · cpe microsoft/office · cpe microsoft/office long term servicing channel · vendor Microsoft Microsoft SharePoint Server 2019 16.0.0 <16.0.10417.20083
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code 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/office2019
- cpe microsoft/office long term servicing channel2021
- vendor Microsoft Microsoft SharePoint Server 2019 16.0.0 <16.0.10417.2008316.0.0 <16.0.10417.20083
How to fix CVE-2026-20948
Upgrade
CVE-2026-20948 lists a fix boundary at 16.0.10417.20083. Compare the installed build with that boundary before you change production.
Version check
Seen in 16.0.0 <16.0.10417.20083
Advisory
Open the cve_org record and follow its fix.
Official advisories
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-2026-20948. EPSS is 0.60%. Act only if a listed version of 365 apps is installed.
Which versions are affected?
Compare what you have installed with microsoft/office long term servicing channel 2021; Microsoft Microsoft SharePoint Server 2019 16.0.0 <16.0.10417.20083 16.0.0 <16.0.10417.20083. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-822. EPSS 0.60%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
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.
Jan 13, 2026 · EUVD
Detected
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Jul 30, 2026 · EUVD
Updated
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Sources
- CVE.orgVulnerability recordCVE-2026-20948
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-20948
30-day exploitation probability 0.60%
first.org - EUVDVulnerability recordEUVD-2026-2132
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
euvd.enisa.europa.eu - Monitored products — criticalVendor advisoryCVE-2026-20948
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
nvd.nist.gov
References
Freshness
Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- Monitored products — criticalNov 2, 2026
- FIRST EPSSNov 1, 2026
- CVE.orgOct 29, 2026
- EUVDOct 29, 2026