Vulnerability details
CVE-2025-64677
Microsoft Office Out-of-Box Experience
Office Out-of-Box Experience Spoofing Vulnerability
CVSS 3.1
8.2High
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.2High | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | Office Out-of-Box Experience | All | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64677 vendor-advisorypatch
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Details
- Published
- 2025-12-19
- Last updated
- 2026-04-16
- State
- Published
- Assigner (CNA)
- microsoft
Exploit prediction (EPSS)
0.49%
Probability of exploitation in 30 days
42.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')