CVE-2023-33137

HIGH

Microsoft Office - Remote Code Execution via Double Free

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-33137. PoCs published by nu11secur1ty.

AI-analyzed exploit summary The exploit leverages a VBA macro in Microsoft Excel to execute arbitrary commands via a POST request to an attacker-controlled server, downloading and executing a malicious batch file. It demonstrates a remote code execution (RCE) vulnerability in Microsoft 365 MSO (Version 2305 Build 16.0.16501.20074) 32-bit.

Description

Microsoft Excel Remote Code Execution Vulnerability

Exploits (1)

exploitdb WORKING POC
by nu11secur1ty · textremotemultiple
https://www.exploit-db.com/exploits/51555

The exploit leverages a VBA macro in Microsoft Excel to execute arbitrary commands via a POST request to an attacker-controlled server, downloading and executing a malicious batch file. It demonstrates a remote code execution (RCE) vulnerability in Microsoft 365 MSO (Version 2305 Build 16.0.16501.20074) 32-bit.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Microsoft 365 MSO (Version 2305 Build 16.0.16501.20074) 32-bit
No auth needed
Prerequisites: Victim must open a malicious Excel file and enable macros
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0275
EPSS Percentile 84.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-415
Status published
Products (4)
microsoft/office 2013 sp1 (3 CPE variants)
microsoft/office 2016 (2 CPE variants)
microsoft/office 2019 (2 CPE variants)
microsoft/office_online_server
Published Jun 14, 2023
Tracked Since Feb 18, 2026