VulnSocial

CVE-2026-40367Patch(microsoft / 365_apps)

LOWCVSS 8.4 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft 365_apps systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.

microsoft CVEsBack to dashboard
1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-822

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • 365_apps
  • office
  • office_long_term_servicing_channel
  • sharepoint_server

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-05-20); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
microsoft
Products
365_appsofficeoffice_long_term_servicing_channelsharepoint_serverword

5 versions affected across 5 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-05-20: 1Mentions · 2026-06-04: 1Patch / Workaround · 2026-05-20: 1Technical Details · 2026-05-20: 105-2006-04
Signal classification2 categories
Patch
150.0%
General
150.0%
Referenced assets2 URLs
By indicator
Classification over time
DateTotalLabels
2026-05-201
Patch1
2026-06-041
General1
Full discourse2 posts
  • Israel@f1tym1
    Patch

    CVE-2026-40367 Microsoft Word Remote Code Execution Vulnerability https://ift.tt/2mvDS1B The security impact for this vulnerability has been revised. This change does not affect the available security updates. Customers should continue to install the recommended updates to rem…

    Post summary

    Microsoft confirms the security impact of CVE‑2026‑40367 has been revised but urges users to continue applying the available updates.

    0100074
    974 followersView on X
  • IntegSec@integ_sec
    General

    CVE-2026-40367: Untrusted Pointer Dereference in Microsoft Office Word — What It Means for Your Business and How to Respond https://hubs.li/Q04k3YDn0

    Post summary

    The reference cites CVE-2026-40367 but offers no concrete details, PoC, exploit, or remediation information.

    0000022
    32 followersView on X
CPE platform detail15 entries

15 of 15 entries

PartVendorProductVersionTarget SWTarget HW
Appmicrosoft365_apps--x64
Appmicrosoft365_apps--x86
Appmicrosoftoffice2019-x64
Appmicrosoftoffice2019-x86
Appmicrosoftoffice_long_term_servicing_channel2021-x64
Appmicrosoftoffice_long_term_servicing_channel2021-x86
Appmicrosoftoffice_long_term_servicing_channel2021macos-
Appmicrosoftoffice_long_term_servicing_channel2024-x64
Appmicrosoftoffice_long_term_servicing_channel2024-x86
Appmicrosoftoffice_long_term_servicing_channel2024macos-
Appmicrosoftsharepoint_server---
Appmicrosoftsharepoint_server2016--
Appmicrosoftsharepoint_server2019--
Appmicrosoftword2016-x64
Appmicrosoftword2016-x86

Explore more

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