CVE-2025-55243

HIGH 7.5CVE-2025-55243 · Published 09/09/2025 · updated 17/06/2026

In short

CVE-2025-55243 is a HIGH (CVSS 7.5) vulnerability affecting officeplus (microsoft).
Chance of exploitation in the next 30 days (EPSS): 1.2%, higher than 67.2% of all vulnerabilities.
Fix: update to 3.10.0.26585 or later.

Package	Affected versions	Patched versions
officeplus microsoft	`< 3.10.0.26585`	`3.10.0.26585`

Description

Exposure of sensitive information to an unauthorized actor in Microsoft Office Plus allows an unauthorized attacker to perform spoofing over a network.

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55243 · Vendor Advisory

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