CVE-2026-45583: CWE-94: Improper Control of Generation of Code ('Code Injection') in Microsoft Microsoft Exchange Server 2016 Cumulative Update 23
Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability involves improper control of code generation in Microsoft Exchange Server 2016 Cumulative Update 23, enabling remote code execution by an unauthorized attacker. The CVSS vector indicates the attack requires network access with high attack complexity, no privileges, and user interaction. Successful exploitation results in high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this vulnerability.
Potential Impact
An attacker can remotely execute arbitrary code on the affected Microsoft Exchange Server 2016 CU23 system without privileges, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45583 to remediate this vulnerability.
CVE-2026-45583: CWE-94: Improper Control of Generation of Code ('Code Injection') in Microsoft Microsoft Exchange Server 2016 Cumulative Update 23
Description
Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper control of code generation in Microsoft Exchange Server 2016 Cumulative Update 23, enabling remote code execution by an unauthorized attacker. The CVSS vector indicates the attack requires network access with high attack complexity, no privileges, and user interaction. Successful exploitation results in high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this vulnerability.
Potential Impact
An attacker can remotely execute arbitrary code on the affected Microsoft Exchange Server 2016 CU23 system without privileges, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45583 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T19:55:45.729Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45583","vendor":"Microsoft"}]
Threat ID: 6a284cdf8dd33fbd85664daf
Added to database: 06/09/2026, 17:26:55 UTC
Last enriched: 07/29/2026, 21:58:28 UTC
Last updated: 07/31/2026, 19:30:14 UTC
Views: 144
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