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CVE-2009-0554

44
FAUCET Score

CVE-2009-0554 is a critical vulnerability in multiple versions of Microsoft Internet Explorer on various Windows operating systems. It allows remote attackers to execute arbitrary code by crafting a malicious web page that exploits uninitialized or deleted memory objects. With a CVSS score of 8.8 (High) and a FAUCET Risk Score of 98/100, this vulnerability poses a significant threat, enabling full compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code, the vulnerability has garnered substantial community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
6CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
7CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
5.01CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:5.01:sp4:*:*:*:*:*:*
6CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
32.17%
Probability of exploitation in next 30 days
EPSS Percentile
98.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.3217 is in the 99th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media 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 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.microsoft.com / en-us/security-updates/securitybulletins/2009/ms09-014
secunia.com / advisories/34678
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5723
support.avaya.com / elmodocs2/security/ASA-2009-133.htm
securitytracker.com / id
us-cert.gov / cas/techalerts/TA09-104A.html
US Government Resource
vupen.com / english/advisories/2009/1028