CVE-2026-62870

EUVD-2026-52536
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 48.72%
Affected Products (NVD)
VendorProductVersion
microsoft365_apps
-
microsoftoffice_2019
-
microsoftoffice_2021
-
microsoftoffice_2024
-
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62870