CISA Known Exploited Vulnerability
This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.
Remediation Deadline: Apr 4, 2023
Description
Microsoft Office Outlook contains a privilege escalation vulnerability that allows for a NTLM Relay attack against another service to authenticate as the user.
EPSS — Exploit Probability
93.6%
Higher than 99.8% of all CVEs
Required Action
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
Risk Assessment
HIGHIn CISA KEV
High EPSS
Details
- Severity
- High
- EPSS
- 93.6%
- CISA KEV
- Yes
- Ransomware
- Unknown
- Articles
- 0
Timeline
Published
Mar 14, 2023
Added to KEV
Mar 14, 2023
Remediation Due
Apr 4, 2023