To exploit the vulnerability, an attacker could send a specially crafted email message containing a malicious link to a user. Alternatively, an attacker could use a chat client to social engineer a user into clicking the malicious link.
The security update addresses the vulnerability by correcting how Microsoft Exchange validates web requests.
Note: In order to exploit this vulnerability, a user must click a maliciously crafted link from an attacker.
Analysis and contextual insights are available on OpenCVE Cloud.
No solution or workaround provided in the CVE record.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Thu, 08 Oct 2026 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network. | An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests. An attacker who successfully exploited this vulnerability could perform script/content injection attacks and attempt to trick the user into disclosing sensitive information. To exploit the vulnerability, an attacker could send a specially crafted email message containing a malicious link to a user. Alternatively, an attacker could use a chat client to social engineer a user into clicking the malicious link. The security update addresses the vulnerability by correcting how Microsoft Exchange validates web requests. Note: In order to exploit this vulnerability, a user must click a maliciously crafted link from an attacker. |
Fri, 02 Oct 2026 22:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Microsoft microsoft Exchange Server 2016 Cumulative Update 23
Microsoft microsoft Exchange Server 2019 Cumulative Update 14 Microsoft microsoft Exchange Server 2019 Cumulative Update 15 Microsoft microsoft Exchange Server Subscription Edition Rtm |
|
| Vendors & Products |
Microsoft microsoft Exchange Server 2016 Cumulative Update 23
Microsoft microsoft Exchange Server 2019 Cumulative Update 14 Microsoft microsoft Exchange Server 2019 Cumulative Update 15 Microsoft microsoft Exchange Server Subscription Edition Rtm |
Fri, 02 Oct 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 02 Oct 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network. | |
| Title | Microsoft Exchange Server Elevation of Privilege Vulnerability | |
| First Time appeared |
Microsoft
Microsoft exchange Server 2016 Microsoft exchange Server 2019 Microsoft exchange Server Se |
|
| Weaknesses | CWE-1390 | |
| CPEs | cpe:2.3:a:microsoft:exchange_server_2016:*:cumulative_update_23:*:*:*:*:*:* cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_14:*:*:*:*:*:* cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_15:*:*:*:*:*:* cpe:2.3:a:microsoft:exchange_server_se:*:RTM:*:*:*:*:*:* |
|
| Vendors & Products |
Microsoft
Microsoft exchange Server 2016 Microsoft exchange Server 2019 Microsoft exchange Server Se |
|
| References |
| |
| Metrics |
cvssV3_1
|
Subscriptions
Status: PUBLISHED
Assigner: microsoft
Published:
Updated: 2026-10-08T22:15:29.112Z
Reserved: 2026-09-23T20:35:19.927Z
Link: CVE-2026-96940
Updated: 2026-10-02T20:14:47.451Z
Status : Undergoing Analysis
Published: 2026-10-02T19:16:43.023
Modified: 2026-10-08T23:17:05.743
Link: CVE-2026-96940
No data.
OpenCVE Enrichment
Updated: 2026-10-09T00:15:13Z