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High severity8.8CISA KEVNVD Advisory· Published Feb 14, 2023· Updated Apr 14, 2026

CVE-2023-21529

CVE-2023-21529

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

5

Microsoft/Exchange Server5 versions
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*+ 4 more
- cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_23:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_11:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_12:*:*:*:*:*:*
- (no CPE)

Patches

Vulnerability mechanics

References

3

msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21529nvdPatchVendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource
www.microsoft.com/en-us/security/blog/2026/04/06/storm-1175-focuses-gaze-on-vulnerable-web-facing-assets-in-high-tempo-medusa-ransomware-operations/nvdTechnical Description

News mentions

0

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