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CVE-2009-0557: Microsoft Office Object Record Corruption Vulnerability
Microsoft Office · in CISA KEV since 2022-06-08
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2022-06-08added to KEV
2022-06-22federal remediation due date
53.00%EPSS exploit probability (30 days) 98.9th percentile
7.8 HIGHCVSS 3.1
Unknownknown ransomware use
4,746days from NVD publication to KEV
What it is
Microsoft Office contains an object record corruption vulnerability that allows remote attackers to execute code via a crafted Excel file with a malformed record object.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-94 |
|---|---|
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD published | 2009-06-10 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2009-0557.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.