Multiple vulnerabilities in Microsoft Excel
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2025-24081 CVE-2025-24082 CVE-2025-24075 |
| CWE-ID | CWE-416 CWE-121 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Office Online Server Server applications / Other server solutions Microsoft Office Client/Desktop applications / Office applications Microsoft Excel Client/Desktop applications / Office applications Microsoft 365 Apps for Enterprise Client/Desktop applications / Office applications Microsoft Office LTSC Client/Desktop applications / Other client software |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU105547
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-2025-24081
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Microsoft Excel. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsOffice Online Server: All versions
Microsoft Office: 2019
Microsoft Excel: 2016
Microsoft Office LTSC: 2021 for Mac - 2024
Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems
CPE2.3- cpe:2.3:a:microsoft:office_online_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_excel:*:*:*:*:*:microsoft_office:*:*
- cpe:2.3:a:microsoft:microsoft_office_ltsc:2021:for Mac:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_ltsc:2021:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_ltsc:2024:for Mac:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_365_apps_for_enterprise:32-bit_Systems:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_365_apps_for_enterprise:64-bit_Systems:*:*:*:*:*:*:*
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24081
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: #VU105550
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-2025-24082
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Microsoft Excel. A remote attacker can execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsOffice Online Server: All versions
Microsoft Office: 2019
Microsoft Excel: 2016
Microsoft Office LTSC: 2021 for Mac - 2024
Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems
CPE2.3- cpe:2.3:a:microsoft:office_online_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_ltsc:2021:for Mac:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_ltsc:2021:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_ltsc:2024:for Mac:*:*:*:*:*:*
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24082
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) Stack-based buffer overflow
EUVDB-ID: #VU105549
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-2025-24075
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Microsoft Excel. A remote unauthenticated attacker can trick a victim to open a specially crafted file, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsOffice Online Server: All versions
Microsoft Office: 2019
Microsoft Excel: 2016
Microsoft Office LTSC: 2021 for Mac - 2024
Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems
CPE2.3- cpe:2.3:a:microsoft:office_online_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_ltsc:2021:for Mac:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_ltsc:2021:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_ltsc:2024:for Mac:*:*:*:*:*:*
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24075
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.
