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CVE-2000-0649

70
FAUCET Score

CVE-2000-0649 describes an information disclosure vulnerability in Microsoft IIS 4.0, where remote attackers can obtain the server's internal IP address. This occurs when an HTTP 1.0 request is made for a basic authentication-protected web page without a defined realm. The vulnerability has a low CVSS score of 2.6, indicating a network attack vector with high attack complexity and a partial impact on confidentiality. Despite its age, exploit modules exist in Metasploit and ExploitDB, suggesting readily available exploit code, though there is no evidence of active exploitation, KEV listing, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
3.0CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_information_server:3.0:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_information_server:4.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_information_services:2.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_information_services:5.0:*:*:*:*:*:*:*

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
76.56%
Probability of exploitation in next 30 days
EPSS Percentile
99.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-20096 · Jul 13, 2000
This CVE's current EPSS score of 0.7656 is in the 100th percentile among its peer group of 1,506 CVEs.

Social Chatter

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/ntbugtraq/2000-q3/0025.html
ExploitPatchVendor Advisory
securityfocus.com / bid/1499
ExploitPatchVendor Advisory