CVE-1999-0775

NONECVSS 0.0

0.0

Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling of the "established" keyword in an access list.

CVSS v3: —
EG Score: —
EPSS: 78.4%
KEV: Not listed

Published

June 10, 1999

Last Modified

April 16, 2026

References (2)

cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0775
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0775

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(4)

What is CVE-1999-0775?

CVE-1999-0775 is a none vulnerability published on June 10, 1999. Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling of the "established" keyword in an access list.

When was CVE-1999-0775 disclosed?

CVE-1999-0775 was first published in the National Vulnerability Database on June 10, 1999, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-1999-0775 actively exploited?

CVE-1999-0775 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-1999-0775?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-0775, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-1999-0775

📅 Published

🔄 Last Modified

🔗 References (2)