CVE-2026-26107

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-26107
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26107 Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*
cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:*
cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x86:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:macos:*:*
cpe:2.3:a:microsoft:office_online_server:*:*:*:*:*:*:*:*
History

13 Mar 2026, 16:01

Type Values Removed Values Added
First Time Microsoft excel
Microsoft office
Microsoft 365 Apps
Microsoft
Microsoft office Long Term Servicing Channel
Microsoft office Online Server
References () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26107 - () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26107 - Vendor Advisory
CPE cpe:2.3:a:microsoft:office_online_server:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*
cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:*
cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x86:*
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:macos:*:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:*
cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:*
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:*
Summary
  • (es) Uso después de liberar en Microsoft Office Excel permite a un atacante no autorizado ejecutar código localmente.

10 Mar 2026, 18:18

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-10 18:18

Updated : 2026-03-13 16:01

NVD link : CVE-2026-26107

Mitre link : CVE-2026-26107

CVE.ORG link : CVE-2026-26107

JSON object : View

Products Affected

microsoft

  • 365_apps
  • excel
  • office
  • office_online_server
  • office_long_term_servicing_channel
CWE
CWE-416

Use After Free