Disclosure summary
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.
Source-reported weakness categories
CWE-79
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2026-Aug
Open original source · Updated Aug 11, 2026
Microsoft Exchange Server Spoofing Vulnerability
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 7.3
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | Microsoft Exchange Server 2016 Cumulative Update 23 | (MSRC status code 3) |
| Microsoft update guide | Microsoft Exchange Server Subscription Edition RTM | (MSRC status code 3) |
| Microsoft update guide | Microsoft Exchange Server 2019 Cumulative Update 15 | (MSRC status code 3) |
| Microsoft update guide | Microsoft Exchange Server 2019 Cumulative Update 14 | (MSRC status code 3) |
Vendor remediation references
- 5121576 · build 15.01.2507.072 · product IDs 12039
- Vendor guidance · product IDs 12039
- 5121576 · product IDs 12039
- 5121573 · build 15.02.2562.046 · product IDs 16792
- Vendor guidance · product IDs 16792
- 5121573 · product IDs 16792
- 5121574 · build 15.02.1748.049 · product IDs 12502
- Vendor guidance · product IDs 12502
- 5121574 · product IDs 12502
- 5121575 · build 15.02.1544.044 · product IDs 12293
- Vendor guidance · product IDs 12293
- 5121575 · product IDs 12293
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-08-11T03:00:00-04:00
MODIFIED 2026-08-11T03:00:00-04:00
INGESTED 2026-10-08T12:40:36-04:00