CVE-2026-62910: CWE-99: Improper Control of Resource Identifiers ('Resource Injection') in Microsoft Microsoft Exchange Server 2016 Cumulative Update 23
Improper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-62910) affects Microsoft Exchange Server 2016 Cumulative Update 23 (version 15.01.0.0). It is classified as CWE-99, improper control of resource identifiers ('resource injection'). The flaw enables an attacker with existing privileges to elevate their privileges remotely over the network. The CVSS v3.1 base score is 7.2, indicating high severity, with network attack vector, low attack complexity, high privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. Microsoft has issued an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to elevate privileges on the affected Microsoft Exchange Server 2016 CU23, potentially gaining higher-level access and control. This can lead to full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Administrators should apply the provided patch for Microsoft Exchange Server 2016 Cumulative Update 23 (version 15.01.0.0) as soon as possible to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-62910: CWE-99: Improper Control of Resource Identifiers ('Resource Injection') in Microsoft Microsoft Exchange Server 2016 Cumulative Update 23
Description
Improper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVSS v3.1
Score 7.2high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-62910) affects Microsoft Exchange Server 2016 Cumulative Update 23 (version 15.01.0.0). It is classified as CWE-99, improper control of resource identifiers ('resource injection'). The flaw enables an attacker with existing privileges to elevate their privileges remotely over the network. The CVSS v3.1 base score is 7.2, indicating high severity, with network attack vector, low attack complexity, high privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. Microsoft has issued an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to elevate privileges on the affected Microsoft Exchange Server 2016 CU23, potentially gaining higher-level access and control. This can lead to full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Administrators should apply the provided patch for Microsoft Exchange Server 2016 Cumulative Update 23 (version 15.01.0.0) as soon as possible to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:25:21.036Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62910","vendor":"Microsoft"}]
Threat ID: 6a7b5823bf8831d539156202
Added to database: 08/11/2026, 17:13:07 UTC
Last enriched: 08/11/2026, 20:56:38 UTC
Last updated: 08/12/2026, 02:36:44 UTC
Views: 6
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