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Microsoft Access VBA, (Mon, May 25th)

0
Medium
Vulnerability
Published: Mon May 25 2026 (05/25/2026, 14:14:58 UTC)
Source: SANS ISC Handlers Diary

Description

Microsoft Access files (Microsoft Office&&#x23&#x3b;x26&#x3b;&#x23&#x3b;39&#x3b;s Database) can contain VBA code.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 05/25/2026, 14:25:05 UTC

Technical Analysis

Microsoft Access files (.mdb or .accdb) can embed VBA code, but unlike other Microsoft Office files, they do not use OLE or OOXML formats and do not contain embedded OLE files. Microsoft has not published official documentation for the Access file format, which limits analysis capabilities. To address this, an existing tool (search-for-compression.py) was enhanced to detect and decompress VBA code compressed with ZLIB within Access files. This capability aids in forensic and malware analysis but does not indicate a specific vulnerability or exploit. No affected versions or patch information is provided.

Potential Impact

There is no direct impact described such as a vulnerability or exploit. The content focuses on technical details about the file format and analysis techniques for VBA code in Access files. No known exploits in the wild or security issues are reported.

Mitigation Recommendations

No remediation or patch is applicable as this is not a vulnerability report but a technical analysis update. No action is required based on the provided information.

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Technical Details

Article Source
{"url":"https://isc.sans.edu/diary/rss/33012","fetched":true,"fetchedAt":"2026-05-25T14:24:59.712Z","wordCount":341}

Threat ID: 6a145bbba5ae1af1aaa7aef9

Added to database: 5/25/2026, 2:24:59 PM

Last enriched: 5/25/2026, 2:25:05 PM

Last updated: 5/26/2026, 3:13:32 AM

Views: 6

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