Resource exhaustion in Microsoft Office Online Server
CVE-2023-23396
Microsoft Excel Denial of Service Vulnerability
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.038 (89.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.038 · newest: 0.038 · change: 0.000
Affected products
- Microsoft Office Online Server — versions 16.0.1
- Microsoft Office Web Apps Server 2013 Service Pack 1 — versions 15.0.1
- Microsoft Office Online Server
- Microsoft Office Web Apps Server — versions 2013
Weakness classification (CWE)
Public proof-of-concept exploits
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23396 (vendor-advisory, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-23396?
- CVE-2023-23396 is a medium-severity vulnerability in Microsoft Office Online Server, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2023-03-14.
- How severe is CVE-2023-23396?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-23396 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.