CVE-2007-5344

Microsoft Internet Explorer 5.01 through 7 allows remote attackers to execute arbitrary code via a crafted website using Javascript that creates, modifies, deletes, and accesses document objects using the tags property, which triggers heap corruption, related to uninitialized or deleted objects, a different issue than CVE-2007-3902 and CVE-2007-3903, and a variant of "Uninitialized Memory Corruption Vulnerability."

Published: 2007-12-12 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2007-5344 is rated Moderate Risk (55.6/100): CVSS Medium severity, with high exploitation likelihood (EPSS 19.59%, 95th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-5344

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-08 26.54% 19.59% -6.95%
2 2026-03-25 27.87% 26.54% -1.33%
3 2026-03-02 27.87%

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-5344

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
8.6 6.4 [email protected]

Weakness enumeration for CVE-2007-5344

Affected software / configurations for CVE-2007-5344

Vendor Product Version Raw CPE
microsoft ie 5.x cpe:2.3:a:microsoft:ie:5.x:*:*:*:*:*:*:*
microsoft ie 6.0 cpe:2.3:a:microsoft:ie:6.0:sp1:*:*:*:*:*:*
microsoft ie 6.0 cpe:2.3:a:microsoft:ie:6.0:sp2:*:*:*:*:*:*
microsoft internet_explorer 5 cpe:2.3:a:microsoft:internet_explorer:5:*:*:*:*:*:*:*
microsoft internet_explorer 5.01 cpe:2.3:a:microsoft:internet_explorer:5.01:*:*:*:*:*:*:*
microsoft internet_explorer 5.1 cpe:2.3:a:microsoft:internet_explorer:5.1:*:*:*:*:*:*:*
microsoft internet_explorer 5.01 cpe:2.3:a:microsoft:internet_explorer:5.01:sp1:*:*:*:*:*:*
microsoft internet_explorer 5.01 cpe:2.3:a:microsoft:internet_explorer:5.01:sp2:*:*:*:*:*:*
microsoft internet_explorer 5.01 cpe:2.3:a:microsoft:internet_explorer:5.01:sp3:*:*:*:*:*:*
microsoft internet_explorer 5.01 cpe:2.3:a:microsoft:internet_explorer:5.01:sp4:*:*:*:*:*:*
microsoft internet_explorer 5.2.3 cpe:2.3:a:microsoft:internet_explorer:5.2.3:*:*:*:*:*:*:*
microsoft internet_explorer 5.5 cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:*
microsoft internet_explorer 5.5 cpe:2.3:a:microsoft:internet_explorer:5.5:preview:*:*:*:*:*:*
microsoft internet_explorer 5.5 cpe:2.3:a:microsoft:internet_explorer:5.5:sp1:*:*:*:*:*:*
microsoft internet_explorer 5.5 cpe:2.3:a:microsoft:internet_explorer:5.5:sp2:*:*:*:*:*:*
microsoft internet_explorer 6 cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
microsoft internet_explorer 6 cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:*
microsoft internet_explorer 6.0 cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:*
microsoft internet_explorer 6.0.2600 cpe:2.3:a:microsoft:internet_explorer:6.0.2600:*:*:*:*:*:*:*
microsoft internet_explorer 6.0.2800 cpe:2.3:a:microsoft:internet_explorer:6.0.2800:*:*:*:*:*:*:*
microsoft internet_explorer 6.0.2800.1106 cpe:2.3:a:microsoft:internet_explorer:6.0.2800.1106:*:*:*:*:*:*:*
microsoft internet_explorer 6.0.2900 cpe:2.3:a:microsoft:internet_explorer:6.0.2900:*:*:*:*:*:*:*
microsoft internet_explorer 6.0.2900.2180 cpe:2.3:a:microsoft:internet_explorer:6.0.2900.2180:*:*:*:*:*:*:*
microsoft internet_explorer 7 cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
microsoft internet_explorer 7.0 cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*
microsoft internet_explorer 7.0 cpe:2.3:a:microsoft:internet_explorer:7.0:beta:*:*:*:*:*:*
microsoft internet_explorer 7.0 cpe:2.3:a:microsoft:internet_explorer:7.0:beta1:*:*:*:*:*:*
microsoft internet_explorer 7.0 cpe:2.3:a:microsoft:internet_explorer:7.0:beta2:*:*:*:*:*:*
microsoft internet_explorer 7.0 cpe:2.3:a:microsoft:internet_explorer:7.0:beta3:*:*:*:*:*:*
microsoft internet_explorer 7.0.5730.11 cpe:2.3:a:microsoft:internet_explorer:7.0.5730.11:*:*:*:*:*:*:*

References for CVE-2007-5344

cvelogic Threat Intelligence