CVE-1999-0817
📛 CVE Title
Lynx WWW client allows a remote attacker to specify command-line parameters which Lynx uses when calling external programs to handle certain protocols, e.g. telnet.
Description
No English description in the CVE record.
Description (MITRE) cveawg.mitre.org
Pulled from cveawg.mitre.org/api/cve/CVE-1999-0817 on 2026-06-26. Shown when MITRE's text differs from the cvelistV5 mirror.
Lynx WWW client allows a remote attacker to specify command-line parameters which Lynx uses when calling external programs to handle certain protocols, e.g. telnet.
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
- 2025-09-03 19:34 UTC
- Last updated
- 2026-02-18 01:04 UTC
- Source
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-1999-0817
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
- 1999-09-15 04:00:00 UTC
- NVD last modified
- 2026-06-16 21:49:07 UTC
- EPSS score
- 0.0310 (probability of exploitation in next 30 days)
- EPSS percentile
- 86.10% vs all CVEs — higher = more likely to be exploited, as of 2026-06-25
NVD / KEV / EPSS data refreshed 2026-06-26 00:27 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.
AI could not derive a confident score from this record (likely RESERVED / REJECTED or too sparse).
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-1999-0798 - Assigner
- mitre
- Published
- Jan 4, 2000, 5:00:00 AM
- Updated
- Aug 1, 2024, 4:48:38 PM
- EUVD-reported EPSS
- 3.1000
- Vendors
- n/a
- Products
-
n/a (n/a)
- Aliases
-
GHSA-354v-9299-wg75
ENISA description: Lynx WWW client allows a remote attacker to specify command-line parameters which Lynx uses when calling external programs to handle certain protocols, e.g. telnet.
EUVD references (1)
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 04:26 UTC (source: CVRF).
- MS severity
- Critical
- Release
- 2000-Jan
Microsoft remediations / KB articles (2)
- CBL-Mariner Releases — Vendor Fix / Security Update (fixed build 2.9.0~dev.9-5)
- https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade — None Available / CBL-Mariner Releases
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 (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:a:university_of_kansas:lynx:*:*:*:*:*:*:*:*
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
MITRE references (1) cveawg.mitre.org
Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.
- https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0817 x_refsource_MISC
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 (2)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0817 cve@mitre.org
- https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0817 af854a3a-2127-422b-91ae-364da2661108
Remediations (10)
-
web:csrc.nist.gov
Enterprise patch management is the process of identifying, prioritizing, acquiring, installing, and verifying the installation of patches, updates, and upgrades throughout an organization. Patching is more important than ever because of the increasing reliance on technology, but there is often a divide between business/mission owners and security/technology management about the value of ...
2026-07-04 21:28 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 21:28 UTC -
web:helpx.adobe.com
This page contains important information regarding security vulnerabilities that could affect specific versions of Adobe products. Use this information to take the prescribed corrective actions.
2026-07-04 21:28 UTC -
web:nvlpubs.nist.gov
The third version, SP 800-40, Revision 3, Guide to Enterprise Patch Management Technologies (2013), was written under the assumption that readers already understood the basics of patch management and that what they most needed help with was implementing, configuring, securing, and using enterprise patch management technologies.
2026-07-04 21:28 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 21:28 UTC -
web:support.microsoft.com
Highlights This update is available through two release phases: gradual rollout and normal rollout. A gradual rollout delivers an update in phases, so features reach devices over time instead of all at once, meaning availability varies by device. A normal rollout is the broad release to all eligible devices at the same time, usually when it reaches general availability (GA).
2026-07-04 21:28 UTC -
web:www.cisa.gov
Updated October 29, 2025: CISA has updated this Alert to include revised information on vulnerable product identification, potential threat activity detections, and additional resources. Microsoft released an update to address a critical remote code execution vulnerability impacting Windows Server Update Service (WSUS) in Windows Server (2012, 2016, 2019, 2022, and 2025), CVE -2025-59287
2026-07-04 21:28 UTC -
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 21:28 UTC -
web:www.oracle.com
Prior Critical Patch Update and Critical Security Patch Update advisories should be reviewed for information regarding earlier published security patches. Refer to Critical Patch Updates, Critical Security Patch Updates, Security Alerts and Bulletins for information about Oracle Security advisories.
2026-07-04 21:28 UTC -
web:www.qualys.com
Accelerate vulnerability remediation by 43% with practical recommendations and a strategic roadmap to bolster your security. Achieve a 90% patch rate improvement through smart automation and Qualys Patch Management.
2026-07-04 21:28 UTC
AI Forensic Analysis
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