CVE-2025-62562
published 2025-12-09CVE-2025-62562: Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.
PriorityP349high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
0.77%
51.7th percentile
Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.
Affected
28 ranges· showing 25
| 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_2019 | >= 19.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| 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 | microsoft_sharepoint_enterprise_server_2016 | >= 16.0.0 < 16.0.5530.1000 | 16.0.5530.1000 |
| microsoft | microsoft_sharepoint_server_2019 | >= 16.0.0 < 16.0.10417.20075 | 16.0.10417.20075 |
| microsoft | microsoft_word_2016 | >= 16.0.1 < 16.0.5530.1000 | 16.0.5530.1000 |
| microsoft | office | — | — |
| microsoft | office_long_term_servicing_channel | — | — |
| microsoft | office_long_term_servicing_channel | — | — |
| microsoft | sharepoint_server | — | — |
| microsoft | sharepoint_server | — | — |
| microsoft | word | — | — |
| msrc | microsoft_365_apps_for_enterprise_for_32-bit_systems | — | — |
| msrc | microsoft_365_apps_for_enterprise_for_64-bit_systems | — | — |
| msrc | microsoft_office_2019_for_32-bit_editions | — | — |
| msrc | microsoft_office_2019_for_64-bit_editions | — | — |
| 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:N/UI:R/S:U/C:H/I:H/A:H
vendor_msrc7.8HIGH
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Microsoft
Microsoft Outlook Remote Code Execution Vulnerability
vendor_msrc·2025-12-09·CVSS 7.8
CVE-2025-62562 [HIGH] CWE-416 Microsoft Outlook Remote Code Execution Vulnerability
Microsoft Outlook Remote Code Execution Vulnerability
Description: Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.
FAQ: Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.
FAQ: There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software?
Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.
FAQ: Are the updates for Microsoft Office LTSC for Mac 2021 and 2024 currently available?
Yes. As of December 16, 2025, the security update for Microsoft Office LTSC for Mac 2021 and 2
GHSA
GHSA-hjmx-69j9-2mm2: Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code locally
ghsa_unreviewed·2025-12-09
CVE-2025-62562 [HIGH] CWE-416 GHSA-hjmx-69j9-2mm2: Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code locally
Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.
No detection rules found.
No public exploits indexed.
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
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
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
Wiz
CVE-2025-62562 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 7.8
CVE-2025-62562 [HIGH] CVE-2025-62562 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2025-62562 :
vulnerability analysis and mitigation
Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.
Source : NVD
## 7.8
Score
Published December 9, 2025
Severity HIGH
CNA Score 7.8
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) 24
Exploitation Probability (EPSS) 0.1
Affected packages and libraries
word
Sources
NVD
Nix Severity HIGH No Fix Added at: Dec 11, 2025
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2025-12-09
Published