Description
Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
Published: 2026-10-13
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Information Disclosure
Action: Apply patch
AI Analysis

Impact

The vulnerability is an untrusted pointer dereference in Microsoft Office PowerPoint that enables an unauthorized attacker to read internal data over a network. This flaw, described as CWE-822, allows the attacker to expose sensitive information that should be protected by the application.

Affected Systems

The affected products are Microsoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, and Microsoft Office LTSC 2024. No specific version numbers are listed, but the flaw applies to all current releases of these Office packages according to the CNA.

Risk and Exploitability

The CVSS score of 6.5 indicates moderate severity. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. The flaw can be exploited remotely over a network by an attacker with network access to the target system. Because the attack vector is network-bound, it can affect any system that exposes PowerPoint services to untrusted traffic.

Generated by OpenCVE AI on October 14, 2026 at 09:45 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Install the security update for Microsoft Office PowerPoint from Microsoft’s release guidance.
  • If a patch cannot be applied immediately, restrict network exposure by blocking or firewalling PowerPoint’s network ports and disabling any remote management features that communicate with PowerPoint.
  • Disable or quarantine third‑party add‑ins and custom extensions that may invoke PowerPoint’s internal functions until the update is installed.

Generated by OpenCVE AI on October 14, 2026 at 09:45 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 15 Oct 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft microsoft 365 Apps For Enterprise
Microsoft microsoft Office Ltsc 2021
Microsoft microsoft Office Ltsc 2024
Vendors & Products Microsoft microsoft 365 Apps For Enterprise
Microsoft microsoft Office Ltsc 2021
Microsoft microsoft Office Ltsc 2024

Thu, 15 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*
cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:*
cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:*
cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:*
cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:*

Wed, 14 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
Title Microsoft Office PowerPoint Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft 365 Apps
Microsoft office 2021
Microsoft office 2024
Weaknesses CWE-822
CPEs cpe:2.3:a:microsoft:365_apps:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:microsoft:office_2021:*:*:*:*:long_term_servicing_channel:*:*:*
cpe:2.3:a:microsoft:office_2024:*:*:*:*:long_term_servicing_channel:*:*:*
Vendors & Products Microsoft
Microsoft 365 Apps
Microsoft office 2021
Microsoft office 2024
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'}


Subscriptions

Microsoft 365 Apps Microsoft 365 Apps For Enterprise Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 Office 2021 Office 2024
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-31T18:10:55.199Z

Reserved: 2026-09-09T22:01:13.385Z

Link: CVE-2026-88203

cve-icon Vulnrichment

Updated: 2026-10-13T19:49:59.775Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-13T19:21:41.930

Modified: 2026-10-15T17:22:35.107

Link: CVE-2026-88203

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-15T23:30:13Z

Weaknesses
  • CWE-822

    Untrusted Pointer Dereference