Vulnerability · Published Sep 9, 2025 · Assigned by microsoft
CVE-2025-55243Microsoft OfficePlus Spoofing Vulnerability
High 7.5
In plain English
A high-severity information exposure in Microsoft OfficePLUS from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 67% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.2%top 32.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Exposure of sensitive information to an unauthorized actor in Microsoft Office Plus allows an unauthorized attacker to perform spoofing over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft OfficePLUS | 3.0.0.0 – before 3.10.0.26585 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
References
- Microsoft OfficePlus Spoofing Vulnerability vendor-advisory, patch