Multiple vulnerabilities in Microsoft Word

Published: 2025-03-11

Risk	High
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2025-24077 CVE-2025-24079 CVE-2025-24078
CWE-ID	CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Microsoft Office LTSC Client/Desktop applications / Other client software Microsoft 365 Apps for Enterprise Client/Desktop applications / Office applications Microsoft Office Client/Desktop applications / Office applications Microsoft Word Client/Desktop applications / Office applications
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU105561

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-24077

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Microsoft Word. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office LTSC: 2021 for Mac - 2024

Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems

CPE2.3

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24077

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use-after-free

EUVDB-ID: #VU105563

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-24079

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Microsoft Word. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 2019

Microsoft Word: 2016

Microsoft Office LTSC: 2021 for Mac - 2024

Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems

CPE2.3

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24079

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Use-after-free

EUVDB-ID: #VU105562

Risk: High

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-24078

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Microsoft Word. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 2019

Microsoft Word: 2016

Microsoft Office LTSC: 2021 for Mac - 2024

Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems

CPE2.3

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24078

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.