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CVE-2000-0503

14
FAUCET Score

CVE-2000-0503 describes a cross-frame scripting vulnerability in Microsoft Internet Explorer 5.01, specifically within the WebBrowser control's IFRAME element, which could allow a remote attacker to bypass security policies via the NavigateComplete2 event. This vulnerability has a low CVSS score of 2.6, indicating a network-based attack with high attack complexity and a potential for partial confidentiality impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:4.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:5.0:*:*:*:*:*:*:*
5.01CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:5.01:*:*:*:*:*:*:*
5.5CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:5.5:preview:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

AV:N/AC:H/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
9.27%
Probability of exploitation in next 30 days
EPSS Percentile
94.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0927 is in the 95th percentile among its peer group of 1,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/win2ksecadvice/2000-q2/0154.html
PatchVendor Advisory
securityfocus.com / bid/1311