EIP-2026-117485

PRE-CVE

Microsoft Excel 2007 SP2 - Buffer Overwrite (MS11-021)

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-117485. PoCs published by Abysssec.

AI-analyzed exploit summary This is a technical analysis of a Microsoft Excel 2007 SP2 buffer overwrite vulnerability (CVE-2011-021). The writeup details the root cause, including improper handling of BOF records and an undocumented record type (0xA7), leading to a stack-based buffer overflow.

Description

Microsoft Excel 2007 SP2 - Buffer Overwrite (MS11-021)

Exploits (1)

exploitdb WRITEUP VERIFIED
by Abysssec · textlocalwindows
https://www.exploit-db.com/exploits/18067

This is a technical analysis of a Microsoft Excel 2007 SP2 buffer overwrite vulnerability (CVE-2011-021). The writeup details the root cause, including improper handling of BOF records and an undocumented record type (0xA7), leading to a stack-based buffer overflow.

Classification
Writeup 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Theoretical
Target: Microsoft Excel 2007 SP2
No auth needed
Prerequisites: Crafted Excel file with malicious BOF records
devstral-2 · analyzed Feb 19, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026