What is CVE-2007-5344?

CVE-2007-5344 is a vulnerability in Microsoft Ie, classified under Code Injection. Published 2007-12-12.

Is CVE-2007-5344 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Microsoft Ie

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."

Vulnerability class: RCE (Remote Code Execution)

Published 2007-12-12 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.275 (98.0th percentile), scored 2026-09-29.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.275 · newest: 0.275 · change: 0.000

Affected products

Microsoft Ie — versions 5.x, 6.0
Microsoft Internet Explorer — versions 5, 5.01, 5.1

Weakness classification (CWE)

CWE-94 — Code Injection

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

exchange.xforce.ibmcloud.com/vulnerabilities/38715 (vdb-entry)
www.securityfocus.com/bid/26817 (vdb-entry)
securitytracker.com/id (vdb-entry)
www.securityfocus.com/archive/1/485268/100/0/threaded (vendor-advisory)
secunia.com/advisories/28036 (Vendor Advisory, third-party-advisory)
www.securityfocus.com/archive/1/484890/100/100/threaded (mailing-list)
docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-069 (vendor-advisory)
www.vupen.com/english/advisories/2007/4184 (vdb-entry, Vendor Advisory)
oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:4480 (signature, vdb-entry)
www.us-cert.gov/cas/techalerts/TA07-345A.html (US Government Resource, third-party-advisory)

Frequently asked questions

What is CVE-2007-5344?: CVE-2007-5344 is a vulnerability in Microsoft Ie, classified under Code Injection. Published 2007-12-12.
Is CVE-2007-5344 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.