CVE-1999-0656
📛 CVE Title
CVE-1999-0656
Description
No English description in the CVE record.
Description (MITRE) cveawg.mitre.org
Pulled from cveawg.mitre.org/api/cve/CVE-1999-0656 on 2026-06-30. Shown when MITRE's text differs from the cvelistV5 mirror.
The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- microsoft
- CVSS severity
- —
- CVSS score
- —
- CVSS vector
- —
- Effective score
- no score available from CNA, NVD, or AI yet
- CWE(s)
- —
- Reserved
- —
- Published
- 2020-09-25 00:00 UTC
- Last updated
- 2020-09-25 00:00 UTC
- Source
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-1999-0656
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 1999-01-01 05:00:00 UTC
- NVD last modified
- 2026-06-16 21:48:47 UTC
- EPSS score
- 0.0155 (probability of exploitation in next 30 days)
- EPSS percentile
- 72.00% vs all CVEs — higher = more likely to be exploited, as of 2026-06-29
NVD-assigned CWE(s):
CWE-16
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-06-30 00:45 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
AI-forensic CVSS estimate
Used only when a CVE has no official CVSS from its CNA or NVD. An LLM estimates the v3.1 base score from the description; a HIGH/CRITICAL estimate promotes the CVE to a Threat.
No AI estimate yet — it runs automatically once NVD has been checked, or click the button above.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-1999-0639 - Assigner
- mitre
- Published
- Feb 4, 2000, 5:00:00 AM
- Updated
- Aug 1, 2024, 4:48:37 PM
- EUVD-reported EPSS
- 1.5500
- Vendors
- n/a
- Products
-
n/a (n/a)
- Aliases
-
GHSA-75cj-jpmc-wm6c
ENISA description: The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.
Microsoft Security Response Center MSRC
Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-09-18 03:08 UTC (source: CVRF).
- Exploit assessment
- DOS:N/A
- Release
- 2020-Sep
Microsoft remediations / KB articles (1)
- kernel — Vendor Fix / CBL-Mariner (fixed build 5.10.60.1-1)
Affected products — CPE 2.3 (1) NVD
NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
MITRE references (2) cveawg.mitre.org
Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.
- http://ca.com/au/securityadvisor/vulninfo/Vuln.aspx?ID=1638 x_refsource_MISC
- linux-ugidd(348) vdb-entry, x_refsource_XF
Web references (2)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
NVD-tagged references (4)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- http://ca.com/au/securityadvisor/vulninfo/Vuln.aspx?ID=1638 cve@mitre.org
- http://ca.com/au/securityadvisor/vulninfo/Vuln.aspx?ID=1638 af854a3a-2127-422b-91ae-364da2661108
- https://exchange.xforce.ibmcloud.com/vulnerabilities/348 cve@mitre.org
- https://exchange.xforce.ibmcloud.com/vulnerabilities/348 af854a3a-2127-422b-91ae-364da2661108
Remediations (10)
-
web:cyberpress.org
The Cybersecurity and Infrastructure Security Agency (CISA) has added a critical Microsoft SharePoint Server vulnerability to its Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild and setting an aggressive remediation deadline for federal agencies and organizations running the platform.
2026-07-04 21:23 UTC -
web:cybersecuritynews.com
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued Binding Operational Directive (BOD) 26-04, titled "Prioritizing Security Updates Based on Risk," compelling all Federal Civilian Executive Branch (FCEB) agencies to remediate the most dangerous known exploited vulnerabilities within just three calendar days.
2026-07-04 21:23 UTC -
web:cybersecuritynews.com
Microsoft has officially acknowledged a critical zero-day vulnerability in Microsoft Defender, publicly dubbed "RoguePlanet," and confirmed it is actively developing a security patch to address the flaw.
2026-07-04 21:23 UTC -
web:msrc.microsoft.com
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
2026-07-04 21:23 UTC -
web:nvd.nist.gov
An official website of the United States government Here's how you know
2026-07-04 21:23 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-07-04 21:23 UTC -
web:www.cisa.gov
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild. Organizations should use the KEV catalog as an input to their vulnerability management prioritization framework. Learn more about ...
2026-07-04 21:23 UTC -
web:www.cisa.gov
The median time for full resolution rose to 43 days. Defenders need greater clarity and speed to patch systems in today's threat landscape. We must flip the script on patching prioritization: patch smarter, not harder.
2026-07-04 21:23 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-07-04 21:23 UTC -
web:www.oracle.com
This Critical Security Patch Update contains 35 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Security Patch Update and other Oracle Software Security Assurance activities is located at May 2026 Critical Security Patch Update: Executive Summary and Analysis.
2026-07-04 21:23 UTC
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