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Vulnerability record · CVE-2000-0114 · published 2 February 2000

CVE-2000-0114: FrontPage Server Extensions account name disclosure via shtml.dll

Microsoft · Internet Information Server

FrontPage Server Extensions exposes the name of the anonymous account when a remote attacker sends an RPC POST request to shtml.dll in the /_vti_bin/ virtual directory. The flaw is an information disclosure issue: it leaks an internal account identifier that can support follow-on attacks, though it does not by itself grant access.

5.0 CVSS 2.0 Medium EPSS 48% · top 1.2%
5.0CVSS 2.0 base score
48%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
16 Jun 2026Last modified by NVD

Description

Frontpage Server Extensions allows remote attackers to determine the name of the anonymous account via an RPC POST request to shtml.dll in the /_vti_bin/ virtual directory.

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

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 20 September 2026. Confidence: medium.

medium priorityThe flaw only discloses an account name and requires no authentication, but the high EPSS score and legacy, often unpatched FrontPage/IIS deployments raise the practical risk.

What it is

FrontPage Server Extensions exposes the name of the anonymous account when a remote attacker sends an RPC POST request to shtml.dll in the /_vti_bin/ virtual directory. The flaw is an information disclosure issue: it leaks an internal account identifier that can support follow-on attacks, though it does not by itself grant access.

Impact

An attacker learns the anonymous account name used by the server, which aids reconnaissance and can feed into later authentication or privilege-escalation attempts. No data modification or code execution is gained from this flaw alone.

Attack surface

Reachable over the network via an HTTP RPC POST to shtml.dll under /_vti_bin/; the CVSS vector (AV:N/AC:L/Au:N) indicates no authentication and no user interaction are required.

Exploitation

Not listed in CISA KEV and no exploit tags appear in the references, but EPSS is high (0.476 probability, 98.8th percentile), suggesting meaningful observed or predicted exploitation activity.

What to do

  • Apply the vendor patch or current supported update for FrontPage Server Extensions / IIS; this is a legacy product, so upgrade to a supported IIS release if patching is unavailable.
  • Remove or disable FrontPage Server Extensions and the /_vti_bin/ virtual directory if they are not required.
  • Restrict network access to /_vti_bin/shtml.dll at the web server or reverse proxy, allowing only trusted sources.
  • Rename or reconfigure the anonymous account so a disclosed name does not map to a predictable or privileged identity.

Detection

  • Monitor web logs for POST requests to /_vti_bin/shtml.dll, especially from untrusted or unexpected source addresses.
  • Alert on repeated or anomalous RPC-style requests to FrontPage extension paths across the server estate.
  • Baseline the anonymous account name and flag any external request patterns that appear to probe for it.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-2000-0114
https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-2000-0114

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Source: NIST National Vulnerability Database (record CVE-2000-0114), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.