CVE-2009-0557 is a critical remote code execution vulnerability affecting multiple versions of Microsoft Excel and related Office products, including those for Mac, due to a malformed record object in crafted Excel files. With a CVSS score of 7.8 (High), it poses a significant risk, allowing attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability, requiring user interaction (opening a malicious file). This vulnerability is actively exploited in the wild, as indicated by its presence in the KEV catalog, despite a lack of public exploit code or significant community discussion. Its FAUCET Risk Score of 100/100 and high EPSS score underscore its severe threat potential.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2000CPE matchmatch criteria | cpe:2.3:a:microsoft:office:2000:sp3:*:*:*:*:*:* | ||
2003CPE matchmatch criteria | cpe:2.3:a:microsoft:office:2003:sp3:*:*:*:*:*:* | ||
2004CPE matchmatch criteria | cpe:2.3:a:microsoft:office:2004:*:*:*:*:macos:*:* | ||
2007CPE matchmatch criteria | cpe:2.3:a:microsoft:office:2007:sp1:*:*:*:*:*:* | ||
2007CPE matchmatch criteria | cpe:2.3:a:microsoft:office:2007:sp2:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.