Security readout for executives and security teams
CVE-2017-8758 is a Microsoft Exchange Server 2016 Outlook Web Access issue. OWA did not properly handle some web requests, creating a cross-site scripting elevation-of-privilege risk. The provided sources name Exchange Server 2016 Cumulative Update 6 as affected, but do not provide CVSS, exploit details, or a confirmed fix in the bundle. Exposure is most likely in organizations still running Microsoft Exchange Server 2016 Cumulative Update 6, particularly where Outlook Web Access is enabled and reachable by users or the internet. Treat as a legacy Exchange exposure requiring inventory and remediation confirmation. Urgency is higher for internet-facing OWA, but the provided evidence is insufficient to claim active exploitation or critical severity. Mitigation focus: Identify any Microsoft Exchange Server 2016 CU6 systems.; Review the MSRC advisory for vendor-confirmed update guidance.; Apply Microsoft-supported Exchange security or cumulative updates where applicable..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Privilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-8758 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8758CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.