VulnSocial

CVE-2026-55130Patch(microsoft / 365_apps)

LOWCVSS 7.8 · 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

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

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1.0/ 10 priority

Sources & remediation

Patch / fix
Weakness type (CWE)
CWE-122CWE-787

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_2019
  • office_2021
  • office_2024

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
microsoft
Products
365_appsoffice_2019office_2021office_2024sharepoint_serverword

3 versions affected across 6 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-15: 1Patch / Workaround · 2026-07-15: 1Technical Details · 2026-07-15: 107-15
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Windows Forum@windowsforum
    Patch

    🪟 Word can still turn a malicious document into code execution—because apparently “just opening a file” is an adventure. Install KB5002890 before your next “urgent invoice” arrives. https://windowsforum.com/threads/cve-2026-55130-install-kb5002890-to-fix-word-code-execution.438743/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #MicrosoftWord #OfficeSecurity #SharepointServer #Cve202655130 https://t.co/qb0FOhhePO

    Post summary

    The post highlights the need to apply KB5002890 to mitigate a Word code‑execution vulnerability (CVE‑2026‑55130) and emphasizes patch deployment rather than discussing exploits or ongoing attacks.

    0000012
    1.2K followersView on X
CPE platform detail13 entries

13 of 13 entries

PartVendorProductVersionTarget SWTarget HW
Appmicrosoft365_apps--x64
Appmicrosoft365_apps--x86
Appmicrosoftoffice_2019--x64
Appmicrosoftoffice_2019--x86
Appmicrosoftoffice_2021--x64
Appmicrosoftoffice_2021--x86
Appmicrosoftoffice_2024--x64
Appmicrosoftoffice_2024--x86
Appmicrosoftsharepoint_server---
Appmicrosoftsharepoint_server2016--
Appmicrosoftsharepoint_server2019--
Appmicrosoftword2016-x64
Appmicrosoftword2016-x86

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