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CVE-2009-1547

52
FAUCET Score

CVE-2009-1547 is a critical memory corruption vulnerability in Microsoft Internet Explorer versions 5.01 SP4, 6, 6 SP1, and 7, affecting various Windows operating systems. This flaw allows remote attackers to execute arbitrary code by enticing a user to visit a malicious website that leverages a crafted data stream header. With a CVSS score of 8.8 (High), it presents a significant risk, requiring user interaction but offering full confidentiality, integrity, and availability compromise upon successful exploitation. While not listed in CISA's KEV catalog, public exploit code exists on ExploitDB, indicating its potential for exploitation, though it shows minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
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:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
6CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*

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
37.44%
Probability of exploitation in next 30 days
EPSS Percentile
98.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-9893 · Oct 15, 2009
This CVE's current EPSS score of 0.3744 is in the 99th percentile among its peer group of 14,875 CVEs.

Social Chatter

No social media mentions found for this CVE.

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/ms09-054
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6454
us-cert.gov / cas/techalerts/TA09-286A.html
US Government Resource