CVE-2023-23397

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2023-23397

Confirmed

Yes

2023-03-14 00:00 UTC

Timestamps

2023-03-14

2023-03-14

Scope

KEV entry: Microsoft Office Outlook Privilege Escalation Vulnerability | Affected: Microsoft / Office | Description: Microsoft Office Outlook contains a privilege escalation vulnerability that allows for a NTLM Relay attack against another service to authenticate as the user. | Required action: Apply updates per vendor instructions. | Due date: 2023-04-04 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-23397, https://msrc.microsoft.com/blog/2023/03/microsoft-mitigates-outlook-elevation-of-privilege-vulnerability/, ; https://nvd.nist.gov/vuln/detail/CVE-2023-23397

References
  • {'id': 'CVE-2023-23397', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-23397'}

6de82d53-739c-4a71-9cd2-02ecf7f41754

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 13:25 UTC

2026-02-06 07:53 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-294"
  ],
  "date_added": "2023-03-14",
  "due_date": "2023-04-04",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "Office",
  "vendorProject": "Microsoft",
  "vulnerabilityName": "Microsoft Office Outlook Privilege Escalation Vulnerability"
}
 -
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