Vulnerability · Published Dec 18, 2025 · Assigned by microsoft
CVE-2025-64677Office Out-of-Box Experience Spoofing Vulnerability
High 8.2
In plain English
A high-severity cross-site scripting in Office Out-of-Box Experience from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Severity (CVSS 3.1)8.2High
Exploit odds (30 days)0.5%top 57.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper neutralization of input during web page generation ('cross-site scripting') in Office Out-of-Box Experience allows an unauthorized attacker to perform spoofing over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Office Out-of-Box Experience | - |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C
References
- Office Out-of-Box Experience Spoofing Vulnerability vendor-advisory, patch