CVE-2025-62554
published 2025-12-09CVE-2025-62554: Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
PriorityP347high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.41%
33.2th percentile
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
Affected
24 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | microsoft_365_apps_for_enterprise | >= 16.0.1 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_2016 | >= 16.0.0 < 16.0.5530.1001 | 16.0.5530.1001 |
| microsoft | microsoft_office_2019 | >= 19.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_for_android | >= 16.0.1 < 16.0.19530.20000 | 16.0.19530.20000 |
| microsoft | microsoft_office_ltsc_2021 | >= 16.0.1 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_ltsc_2024 | >= 16.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_ltsc_for_mac_2021 | >= 16.0.1 < 16.104.25121423 | 16.104.25121423 |
| microsoft | microsoft_office_ltsc_for_mac_2024 | >= 16.0.0 < 16.104.25121423 | 16.104.25121423 |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office_long_term_servicing_channel | — | — |
| microsoft | office_long_term_servicing_channel | — | — |
| msrc | microsoft_365_apps_for_enterprise_for_32-bit_systems | — | — |
| msrc | microsoft_365_apps_for_enterprise_for_64-bit_systems | — | — |
| msrc | microsoft_office_2016 | — | — |
| msrc | microsoft_office_2019_for_32-bit_editions | — | — |
| msrc | microsoft_office_2019_for_64-bit_editions | — | — |
| msrc | microsoft_office_for_android | — | — |
| msrc | microsoft_office_ltsc_2021_for_32-bit_editions | — | — |
| msrc | microsoft_office_ltsc_2021_for_64-bit_editions | — | — |
| msrc | microsoft_office_ltsc_2024_for_32-bit_editions | — | — |
| msrc | microsoft_office_ltsc_2024_for_64-bit_editions | — | — |
| msrc | microsoft_office_ltsc_for_mac_2021 | — | — |
| msrc | microsoft_office_ltsc_for_mac_2024 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_msrc8.4HIGH
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GHSA
GHSA-p835-c93r-pmx2: Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally
ghsa_unreviewed·2025-12-09
CVE-2025-62554 [HIGH] CWE-843 GHSA-p835-c93r-pmx2: Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
Microsoft
Microsoft Office Remote Code Execution Vulnerability
vendor_msrc·2025-12-09·CVSS 8.4
CVE-2025-62554 [HIGH] CWE-843 Microsoft Office Remote Code Execution Vulnerability
Microsoft Office Remote Code Execution Vulnerability
Description: Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
FAQ: Is the Preview Pane an attack vector for this vulnerability?
Yes, the Preview Pane is an attack vector.
FAQ: How could an attacker exploit this vulnerability?
Exploitation of this vulnerability requires that an attacker send a malicious link to the victim via email, or that they convince the user to click the link, typically by way of an enticement in an email or Instant Messenger message. In the worst-case email attack scenario, an attacker could send a specially crafted email to the user without a requirement that the victim open, read, or click on the link. This could result in
No detection rules found.
No public exploits indexed.
Tenable
Microsoft’s December 2025 Patch Tuesday Addresses 56 CVEs (CVE-2025-62221)
blogs_tenable·2025-12-09·CVSS 7.8
[HIGH] Microsoft’s December 2025 Patch Tuesday Addresses 56 CVEs (CVE-2025-62221)
## Cloud Exposure
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## Business needs
Active Directory
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Krebs
Microsoft Patch Tuesday, December 2025 Edition
blogs_krebs·2025-12-09·CVSS 7.8
[HIGH] Microsoft Patch Tuesday, December 2025 Edition
Microsoft today pushed updates to fix at least 56 security flaws in its Windows operating systems and supported software. This final Patch Tuesday of 2025 tackles one zero-day bug that is already being exploited, as well as two publicly disclosed vulnerabilities.
Despite releasing a lower-than-normal number of security updates these past few months, Microsoft patched a whopping 1,129 vulnerabilities in 2025, an 11.9% increase from 2024. According to Satnam Narang at Tenable, this year marks the second consecutive year that Microsoft patched over one thousand vulnerabilities, and the third time it has done so since its inception.
The zero-day flaw patched today is CVE-2025-62221, a privilege escalation vulnerability affecting Windows 10 and later editions. The weakness resides in a compon
Talos
Microsoft Patch Tuesday for December 2025 — Snort rules and prominent vulnerabilities
blogs_talos·2025-12-09·CVSS 8.8
[HIGH] Microsoft Patch Tuesday for December 2025 — Snort rules and prominent vulnerabilities
## Microsoft Patch Tuesday for December 2025 — Snort rules and prominent vulnerabilities
The Patch Tuesday for December of 2025 includes 57 vulnerabilities, including two that Microsoft marked as “critical.” The remaining vulnerabilities listed are classified as “important.” Microsoft assessed that exploitation of the two “critical” vulnerabilities is “less likely.”
CVE‑2025‑62562 is a Microsoft Outlook remote code execution vulnerability. Although it involves a use after free in Microsoft Office Outlook to allow an unauthorized attacker to execute code locally, an attacker would still need to send a malicious email and persuade the user to reply to it for the exploit to work.
CVE-2025-62553 , CVE-2025-62554 , CVE-2025-62556 and CVE-2025-62557 are Microsoft Office Remote Code Execution
Qualys
Microsoft and Adobe Patch Tuesday, December 2025 Security Update Review
blogs_qualys·2025-12-09
Microsoft and Adobe Patch Tuesday, December 2025 Security Update Review
## Table of Contents
Microsoft Patch Tuesday forDecember2025
Adobe Patches for December 2025
Zero-day Vulnerabilities Patched inDecemberPatch Tuesday Edition
Critical Severity Vulnerabilities Patched in DecemberPatch Tuesday Edition
Other Microsoft Vulnerability Highlights
Microsoft Release Summary
Discover and Prioritize Vulnerabilities inVulnerability Management, Detection & Response (VMDR)
Rapid Response with TruRisk Eliminate
Qualys Monthly Webinar Series
As the year winds down, Microsoft Patch Tuesday in December arrives with essential fixes and enhancements to close vulnerabilities and boost performance. Here’s a quick breakdown of what you need to know.
## Microsoft Patch Tuesday for December 2025
This month’s release addresses 72 vulnerabilities, including three critica
Talos
Microsoft Patch Tuesday for December 2025 — Snort rules and prominent vulnerabilities
blogs_talos·2025-12-09·CVSS 8.8
[HIGH] Microsoft Patch Tuesday for December 2025 — Snort rules and prominent vulnerabilities
The Patch Tuesday for December of 2025 includes 57 vulnerabilities, including two that Microsoft marked as “critical.” The remaining vulnerabilities listed are classified as “important.” Microsoft assessed that exploitation of the two “critical” vulnerabilities is “less likely.”
CVE‑2025‑62562 is a Microsoft Outlook remote code execution vulnerability. Although it involves a use after free in Microsoft Office Outlook to allow an unauthorized attacker to execute code locally, an attacker would still need to send a malicious email and persuade the user to reply to it for the exploit to work.
CVE-2025-62553, CVE-2025-62554, CVE-2025-62556 and CVE-2025-62557 are Microsoft Office Remote Code Execution Vulnerability. An attacker can access resources using incompatible type ('type confusion') o
Qualys
Microsoft and Adobe Patch Tuesday, December 2025 Security Update Review | Qualys
blogs_qualys·2025-12-09
Microsoft and Adobe Patch Tuesday, December 2025 Security Update Review | Qualys
#### Table of Contents
- Microsoft Patch Tuesday forDecember2025
- Adobe Patches for December 2025
- Zero-day Vulnerabilities Patched inDecemberPatch Tuesday Edition
- Critical Severity Vulnerabilities Patched in DecemberPatch Tuesday Edition
- Other Microsoft Vulnerability Highlights
- Microsoft Release Summary
- Discover and Prioritize Vulnerabilities inVulnerability Management, Detection & Response (VMDR)
- Rapid Response with TruRisk Eliminate
- Qualys Monthly Webinar Series
As the year winds down, Microsoft Patch Tuesday in December arrives with essential fixes and enhancements to close vulnerabilities and boost performance. Here’s a quick breakdown of what you need to know.
## Microsoft Patch Tuesday for December 2025
This month’s release addresses 72 vulnerabilities, including t
Bleepingcomputer
Microsoft December 2025 Patch Tuesday fixes 3 zero-days, 57 flaws
blogs_bleepingcomputer·2025-12-09·CVSS 7.8
[HIGH] Microsoft December 2025 Patch Tuesday fixes 3 zero-days, 57 flaws
## Microsoft December 2025 Patch Tuesday fixes 3 zero-days, 57 flaws
## Lawrence Abrams
28 Elevation of Privilege Vulnerabilities
19 Remote Code Execution Vulnerabilities
4 Information Disclosure Vulnerabilities
3 Denial of Service Vulnerabilities
2 Spoofing Vulnerabilities
When BleepingComputer reports on Patch Tuesday security updates, we only count those released by Microsoft today. Therefore, the number of flaws does not include Microsoft Edge (15 flaws) and Mariner vulnerabilities fixed earlier this month.
To learn more about the non-security updates released today, you can review our dedicated articles on the Windows 11 KB5072033 & KB5071417 cumulative updates .
If you're facing delays, blind spots, or prioritization issues with Patch Tuesday updates, our recent webinar with
Krebs
Microsoft Patch Tuesday, December 2025 Edition
blogs_krebs·2025-12-09·CVSS 7.8
[HIGH] Microsoft Patch Tuesday, December 2025 Edition
Microsoft today pushed updates to fix at least 56 security flaws in its Windows operating systems and supported software. This final Patch Tuesday of 2025 tackles one zero-day bug that is already being exploited, as well as two publicly disclosed vulnerabilities.
Despite releasing a lower-than-normal number of security updates these past few months, Microsoft patched a whopping 1,129 vulnerabilities in 2025, an 11.9% increase from 2024. According to Satnam Narang at Tenable , this year marks the second consecutive year that Microsoft patched over one thousand vulnerabilities, and the third time it has done so since its inception.
The zero-day flaw patched today is CVE-2025-62221 , a privilege escalation vulnerability affecting Windows 10 and later editions. The weakness resides in a comp
Crowdstrike
December 2025 Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] December 2025 Patch Tuesday: Updates and Analysis
How CrowdStrike is Accelerating Exposure Evaluation as Adversaries Gain Speed Apr 06, 2026
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
How CrowdStrike is Accelerating Exposure Evaluation as Adversaries Gain Speed Apr 06, 2026
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
Video Highlights the 4 Key Steps to Successful Incident Response Dec 02, 2019
Helping Non-Security Stakeholders Understand AT
Wiz
CVE-2025-62554 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 8.4
CVE-2025-62554 [HIGH] CVE-2025-62554 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2025-62554 :
vulnerability analysis and mitigation
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
Source : NVD
## 7.8
Score
Published December 9, 2025
Severity HIGH
CNA Score 8.4
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 37.3
Exploitation Probability (EPSS) 0.2
Sources
NVD
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2025-12-09
Published