CVE-2026-32197Patch(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

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

1.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-416

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
  • excel
  • office
  • office_long_term_servicing_channel

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 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-14); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
Products
365_appsexcelofficeoffice_long_term_servicing_channeloffice_online_server

5 versions affected across 5 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-14: 1Mentions · 2026-04-15: 1Patch / Workaround · 2026-04-14: 1Technical Details · 2026-04-14: 1Technical Details · 2026-04-15: 104-1404-15
Signal classification2 categories
Patch
150.0%
Disclosure
150.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-04-141
Patch1
2026-04-151
Disclosure1
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-32197 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. https://www.cve.org/CVERecord?id=CVE-2026-32197

    Post summary

    The snippet announces a use‑after‑free vulnerability in Microsoft Office Excel that enables local code execution, with no PoC, exploit, patch, or evidence of active exploitation presented.

    00000100
    57.2K followersView on X
  • Red Hornet Intel@RedHornet_Intel
    Patch

    CVE-2026-32197 | Microsoft 365 Apps for Enterprise | Remote Code Execution Description Use-after-free vulnerability in Microsoft Office Excel allows unauth attacker to achieve RCE locally by tricking user into opening malicious Excel file. Severity: High Exploitation: Unknown Public PoC: Unknown Patch Available: Yes Affected Product: Microsoft 365 Apps for Enterprise Affected Version: >= 16.0.1 and < https://aka.ms/OfficeSecurityReleases Sources Vendor: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32197

    Post summary

    Microsoft has issued a patch for the use‑after‑free RCE vulnerability (CVE‑2026‑32197) in Office Excel; no public PoC or active exploitation has been reported.

    0000055
    8 followersView on X
CPE platform detail13 entries

13 of 13 entries

PartVendorProductVersionTarget SWTarget HW
Appmicrosoft365_apps--x64
Appmicrosoft365_apps--x86
Appmicrosoftexcel2016-x64
Appmicrosoftexcel2016-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-
Appmicrosoftoffice_online_server---

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