CVE-2023-23397 · netVigilance record NV23-0026
Microsoft Office Outlook Privilege Escalation
past due
What to do
Apply updates per vendor instructions.
CISA deadline 2023-04-04 · passed 3 years 5 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
Microsoft Office Outlook contains a privilege escalation vulnerability that allows for a NTLM Relay attack against another service to authenticate as the user.
Who is affected
Microsoft Office. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-294.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 3 years 5 months ago
Sources
- NVD entry for CVE-2023-23397 nvd.nist.gov/vuln/detail/CVE-2023-23397
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- msrc.microsoft.com msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-23397
- msrc.microsoft.com msrc.microsoft.com/blog/2023/03/microsoft-mitigates-outlook-elevation-of-privilege-vulnerability/
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2023-23397