ChangeIntel IT change radar

Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2023-23397CISA KEV

Microsoft Office Outlook Privilege Escalation Vulnerability

Severity unknownCVSS unknownCheck the vendor advisory for fixed versions

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

CISA KEV Check MSRC

CISA catalog record

Microsoft Office Outlook contains a privilege escalation vulnerability that allows for a NTLM Relay attack against another service to authenticate as the user.

Product: Office
Added to KEV: 14 Mar 2023
Federal remediation due: 4 Apr 2023
Known ransomware use: Not reported

Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version

Field-level log (2)

Up to 100 recent field edits are shown; older edits may be outside retention.

23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete

Explore global source statements, affected packages and advisory history for CVE-2023-23397. The catalog has a separate collection scope from Microsoft release records.

More advisories, affected versions and source history

cve-program · CVE-2023-23397

Published

Microsoft Office LTSC 2021

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft Office LTSC 2021",
                    "platforms": [
                        "32-bit Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "16.0.1",
                            "lessThan": "https://aka.ms/OfficeSecurityReleases",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft Outlook 2016

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft Outlook 2016",
                    "platforms": [
                        "32-bit Systems",
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "16.0.0.0",
                            "lessThan": "16.0.5387.1000",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft 365 Apps for Enterprise

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft 365 Apps for Enterprise",
                    "platforms": [
                        "x64-based Systems",
                        "32-bit Systems"
                    ],
                    "versions": [
                        {
                            "version": "16.0.1",
                            "lessThan": "https://aka.ms/OfficeSecurityReleases",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft Office 2019

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft Office 2019",
                    "platforms": [
                        "x64-based Systems",
                        "32-bit Systems"
                    ],
                    "versions": [
                        {
                            "version": "19.0.0",
                            "lessThan": "https://aka.ms/OfficeSecurityReleases",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft Outlook 2013 Service Pack 1

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft Outlook 2013 Service Pack 1",
                    "platforms": [
                        "x64-based Systems",
                        "ARM64-based Systems",
                        "32-bit Systems"
                    ],
                    "versions": [
                        {
                            "version": "15.0.0.0",
                            "lessThan": "15.0.5537.1000",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON