Microsoft Defender Portal Spoofing Vulnerability
CVE-2025-62459 is a spoofing vulnerability in Microsoft Defender Portal (rated Critical, CVSS 8.3). Microsoft fixed it in the service; customers need to do nothing.
1 version
Facts
- Microsoft id
CVE-2025-62459- Products
- Microsoft Defender Portal
- Severity
- Critical
- Impact
- Spoofing
- CVSS
- 8.3
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C
- Exploited
- No
- Publicly disclosed
- No
- Customer action required
- No
- Release
- 2025-Nov
- Assigned by
- Microsoft
- Weakness
- CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- MSRC revision
- 1.0
- First captured by us
- (from our first import of this list)
- Microsoft last modified
- Source
- Security updates · open the original at Microsoft
Microsoft's revision notes
- Revision 1.0, 2025-11-20:
Information published.
Microsoft says
Why are there no links to an update or instructions with steps that must be taken to protect from this vulnerability?
What Microsoft changed
One version so far. If Microsoft edits it, each change shows here with what was removed and added.
First version we captured ·
The text as we first saw it
Seen by us · Microsoft's timestamp · Microsoft's page