Authenticated security feature bypass via missing authorization
Published Aug 11, 2026 · Updated Aug 25, 2026
Missing authorization in Microsoft Exchange Server allows remote authenticated users to bypass a security feature over a network. Microsoft's published records do not identify the affected Exchange endpoint or feature, but the CNA record attributes the issue to a missing authorization check on a network-reachable operation. Valid Exchange credentials are required, and the published scoring limits the documented impact to integrity by allowing protected actions that the caller should not be permitted to perform.
Summary
What happened
Missing authorization in Microsoft Exchange Server allows remote authenticated users to bypass a security feature over a network. Microsoft's published records do not identify the affected Exchange endpoint or feature, but the CNA record attributes the issue to a missing authorization check on a network-reachable operation. Valid Exchange credentials are required, and the published scoring limits the documented impact to integrity by allowing protected actions that the caller should not be permitted to perform.
The record
- CVE
- CVE-2026-62915
- Published
- Aug 11, 2026
- Updated
- Aug 25, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-862
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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