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CVE-1999-0154

42
FAUCET Score

CVE-1999-0154 describes a source code disclosure vulnerability affecting Microsoft IIS versions 2.0 and 3.0. Remote attackers can exploit this flaw by appending a dot to the end of a URL, allowing them to read the source code of ASP pages. This vulnerability has a medium severity CVSS score of 5.0, indicating a network-based attack with low complexity and a potential impact of partial confidentiality loss. While not actively exploited in the wild or on CISA's KEV catalog, exploit code is publicly available through ExploitDB, though there is no recorded community discussion or media coverage.

Impacted Technologies

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

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
40.02%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-20481 · Feb 20, 1997
This CVE's current EPSS score of 0.4002 is in the 99th percentile among its peer group of 23,725 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 0.4 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

exchange.xforce.ibmcloud.com / vulnerabilities/CVE-1999-0154