Home/CVE/Buffer overflow in Microsoft Internet Explorer 5.01, 5.5, and 6.0 allows remote attackers to execute arbitrary code via
CVE

CVE-2003-0344

Buffer overflow in Microsoft Internet Explorer 5.01, 5.5, and 6.0 allows remote attackers to execute arbitrary code via

Buffer overflow in Microsoft Internet Explorer 5.01, 5.5, and 6.0 allows remote attackers to execute arbitrary code via / (slash) characters in the Type property of an Object tag in a web page.

HIGH · CVSS 7.5 EPSS 0.86491
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 1% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
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Affected Products & Versions

2
microsoft ieall versions
microsoft internet explorerall versions
⚠

Public Exploits & PoCs

3
remoteMicrosoft Internet Explorer - Object Type (MS03-020) (Metasploit)verified
remoteMicrosoft Internet Explorer - Object Tag (MS03-020)verified
remoteMicrosoft Internet Explorer 5 - OBJECT Tag Buffer Overflowverified
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Detection Rules (IDS/IPS)

1
snort-communityBROWSER-IE Microsoft Internet Explorer malformed object type overflow attemptattempted-user
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumInternet Explorer DisableFirstRunCustomize Enabled
productmediumInternet Explorer Autorun Keys Modification
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Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD16 Jun 2003 · 04:00 AM
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.grok.org.uk/pipermail/full-disclosure/2003-July/006401.html
http://marc.info/?l=bugtraq&m=105476381609135&w=2
http://secunia.com/advisories/8943
http://www.eeye.com/html/Research/Advisories/AD20030604.htmlPatchVendor Advisory
http://www.kb.cert.org/vuls/id/679556US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-020
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