CVE-2023-23396

MEDIUM

Microsoft Office Online Server - Denial of Service via Excel File Processing

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-23396. PoCs published by LucaBarile.

AI-analyzed exploit summary The repository contains no actual exploit code but instead redirects users to external links for downloading the exploit and reading a report. This is a common tactic for social engineering lures.

Description

Microsoft Excel Denial of Service Vulnerability

Exploits (1)

nomisec SUSPICIOUS 6 stars
by LucaBarile · poc
https://github.com/LucaBarile/CVE-2023-23396

The repository contains no actual exploit code but instead redirects users to external links for downloading the exploit and reading a report. This is a common tactic for social engineering lures.

Classification
Suspicious 90%
Attack Type
Other
Complexity
N/a
Reliability
N/a
Target: Microsoft Excel (client version)
No auth needed
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 6.5
EPSS 0.0383
EPSS Percentile 88.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (2)
microsoft/office_online_server
microsoft/office_web_apps_server 2013 sp1
Published Mar 14, 2023
Tracked Since Feb 18, 2026