Risk Scores
CVSS v3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft Exchange Server 2016 Cumulative Update 23 15.01.2507.017 | ||
| Microsoft Exchange Server 2019 Cumulative Update 11 <15.02.0986.037 | ||
| Microsoft Exchange Server 2019 Cumulative Update 11 15.02.0986.037 | ||
| Microsoft Exchange Server 2019 Cumulative Update 12 <15.02.1118.021 | ||
| Microsoft Exchange Server 2016 Cumulative Update 23 <15.01.2507.017 | ||
| Microsoft Exchange Server 2019 Cumulative Update 12 15.02.1118.021 |
Timeline
- Jan 10, 2023 CVE Published
- Apr 20, 2026 Security Advisory
- Apr 20, 2026 Security Advisory
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21764 advisory
- https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-21764.json advisory
- https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1 url
- https://support.microsoft.com/lifecycle url
- https://www.first.org/cvss url
- https://support.microsoft.com/help/5022193 fix
- https://support.microsoft.com/help/5022143 fix