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CVE-1999-0524

📛 CVE Title

ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.

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Description

No English description in the CVE record.

Description (MITRE) cveawg.mitre.org

Pulled from cveawg.mitre.org/api/cve/CVE-1999-0524 on 2026-06-30. Shown when MITRE's text differs from the cvelistV5 mirror.

ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.

Overview

State
PUBLISHED
Assigner (CNA)
microsoft
CVSS severity
—
CVSS score
—
CVSS vector
—
Effective score
4.0 / 10 MEDIUM source: NVD
CWE(s)
CWE-200
Reserved
—
Published
2020-09-25 00:00 UTC
Last updated
2021-12-16 00:00 UTC
Source
https://msrc.microsoft.com/update-guide/vulnerability/CVE-1999-0524

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
1997-08-01 04:00:00 UTC
NVD last modified
2026-06-16 21:48:34 UTC
NVD CVSS v3.1
CVSS 4.0 / 10 4.0 4.0 / 10 MEDIUM source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Exploitability subscore
2.5 / 10
Impact subscore
1.4 / 10
EPSS score
0.3159 (probability of exploitation in next 30 days)
EPSS percentile
98.07% vs all CVEs — higher = more likely to be exploited, as of 2026-06-29

NVD / KEV / EPSS data refreshed 2026-06-30 00:45 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

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-1999-0522
Assigner
mitre
Published
Feb 4, 2000, 5:00:00 AM
Updated
May 28, 2026, 5:44:18 PM
EUVD base score (CVSS 3.1)
4.0 / 10
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EUVD-reported EPSS
31.5900
Vendors
n/a
Products
n/a (n/a)
Aliases
GHSA-5qg4-5cpf-4r9p

ENISA description: ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.

EUVD references (8)

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 2026-07-10 04:29 UTC (source: CVRF).

MS severity
Low
Release
2000-Feb
Microsoft remediations / KB articles (2)
Microsoft FAQ (1)

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?

One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.

Affected products — CPE 2.3 (14) 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:apple:mac_os_x:-:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:*
  • cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:*
  • cpe:2.3:o:hp:tru64:-:*:*:*:*:*:*:*
  • cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:*
  • cpe:2.3:o:ibm:os2:-:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
  • cpe:2.3:o:novell:netware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:oracle:solaris:-:*:*:*:*:*:-:*
  • cpe:2.3:o:sco:sco_unix:-:*:*:*:*:*:*:*
  • cpe:2.3:o:sgi:irix:-:*:*:*:*:*:*:*
  • cpe:2.3:o:windriver:bsdos:-:*:*:*:*:*:*:*

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

MITRE references (8) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

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 (17)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

Remediations (10)

  • CISA Warns Actively Exploited Microsoft SharePoint RCE Flaw Requires ...
    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 21:20 UTC
  • CISA Requires Federal Agencies to Patch Critical Vulnerabilities Within ...
    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 21:20 UTC
  • Resolved issues | FortiADC 7.4.4 | Fortinet Document Library
    web:docs.fortinet.com

    ICMP Timestamp Request Remote Date Disclosure ( CVE-1999-0524 ) remediation support.

    2026-07-04 21:20 UTC
  • Security Update Guide - Microsoft
    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 21:20 UTC
  • KB5089900 - Description of the security update for SQL Server 2022 CU24 ...
    web:support.microsoft.com

    How to obtain or download the latest cumulative update package for Linux To update SQL Server 2022 on Linux to the latest CU, you must first have the Cumulative Update repository configured. Then, update your SQL Server packages by using the appropriate platform-specific update command. For installation instructions and direct links to the CU package downloads, see the SQL Server 2022 Release ...

    2026-07-04 21:20 UTC
  • CISA Issues New Directive Improving How Federal Agencies Prioritize the ...
    web:www.cisa.gov

    The Directive consolidates, clarifies and updates the urgency of vulnerability remediation , focuses agencies patching efforts on the highest risk, and enhances efficiency for federal civilian agencies.

    2026-07-04 21:20 UTC
  • May 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
    web:www.crowdstrike.com

    Microsoft has released security updates for 130 vulnerabilities, including 30 critical, in its May 2026 Patch Tuesday rollout.

    2026-07-04 21:20 UTC
  • Oracle Critical Patch Update Advisory - April 2026
    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 21:20 UTC
  • Oracle Critical Security Patch Update Advisory - May 2026
    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 21:20 UTC
  • Vulnerabilities Resolved in Veeam Backup & Replication 12.3.2.4165 Patch
    web:www.veeam.com

    When a vulnerability is identified, our team promptly develops a patch to address and mitigate the risk. In line with our dedication to transparency, we publicly disclose the vulnerability and provide detailed mitigation information.

    2026-07-04 21:20 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-1999-0524.json.

Not stored.