CVE-2020-1321General(microsoft / 365_apps)

LOWCVSS 8.8 · HIGH

Signal is active with 1 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

A remote code execution vulnerability exists in Microsoft Office software when it fails to properly handle objects in memory, aka 'Microsoft Office Remote Code Execution Vulnerability'.

0.0/ 10 priority

Sources & remediation

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

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

  • 365_apps
  • office

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
365_appsoffice

3 versions affected across 2 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-10: 1Technical Details · 2026-05-10: 105-10
Signal classification1 categories
General
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Ariel@0xArielK
    General

    In 2020, I found a Microsoft Office RCE The interesting part was not just the bug - it was the workflow: grammar-based GLB fuzzing, DOCX embedding, real-product execution, crash collection, and triage That same workflow can now be amplified by AI https://arielkoren.com/vulnerabilities/cve-2020-1321/ #CVE #AI

    Post summary

    The tweet outlines a workflow that exploits a Microsoft Office RCE (CVE-2020-1321) using grammar-based GLB fuzzing and DOCX embedding, noting that AI can further amplify this technique, but it does not provide any exploit code, patch, or active exploitation evidence.

    114065614.9K
    894 followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
Appmicrosoft365_apps---
Appmicrosoftoffice2016macos-
Appmicrosoftoffice2019--
Appmicrosoftoffice2019macos-

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