CVE-2026-88178(microsoft / 365_apps)

LOWCVSS 9.8 · CRITICAL

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-416

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

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

  • 365_apps
  • microsoft_365
  • office_2021
  • office_2024

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • 2 total mentions across 1 day

Affected systems

Vendors
Products
365_appsmicrosoft_365office_2021office_2024

1 version affected across 4 products

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-10-14: 210-14
Referenced assets2 URLs
Full discourse2 posts
  • Kamil J. Dudek (extends Object)@kamiljdudek

    @UK_Daniel_Card Sure. CVE-2026-88178 is a great example. If this is remote, then everything is remote, because the attacker doesn’t live inside the PC. Same with CVE-2026-96951. This is a local privilege escalation, not RCE. And what is CVE-2026-69786? It’s been like that for years 😭😭

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  • mRr3b00t@UK_Daniel_Card

    @kamiljdudek just writing some notes: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88178 https://nvd.nist.gov/vuln/detail/cve-2026-88178 use after free..... in Office..... 'Microsoft Office PowerPoint' LOOOOOOL https://t.co/wyf0pqEVwz

    00031259
    126.0K followersView on X
CPE platform detail9 entries

9 of 9 entries

PartVendorProductVersionTarget SWTarget HW
Appmicrosoft365_apps--x64
Appmicrosoft365_apps--x86
Appmicrosoftmicrosoft_365-macos-
Appmicrosoftoffice_2021--x64
Appmicrosoftoffice_2021--x86
Appmicrosoftoffice_2021-macos-
Appmicrosoftoffice_2024--x64
Appmicrosoftoffice_2024--x86
Appmicrosoftoffice_2024-macos-

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