CVE-1999-1273

NONECVSS 0.0

0.0

Squid Internet Object Cache 1.1.20 allows users to bypass access control lists (ACLs) by encoding the URL with hexadecimal escape sequences.

CVSS v3: —
EG Score: —
EPSS: 64.7%
KEV: Not listed

Published

February 20, 1998

Last Modified

April 16, 2026

References (4)

cve@mitrehttp://www.securityfocus.com/archive/1/8551
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/1627
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/8551
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/1627

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-1999-1273?

CVE-1999-1273 is a none vulnerability published on February 20, 1998. Squid Internet Object Cache 1.1.20 allows users to bypass access control lists (ACLs) by encoding the URL with hexadecimal escape sequences.

When was CVE-1999-1273 disclosed?

CVE-1999-1273 was first published in the National Vulnerability Database on February 20, 1998, 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-1999-1273 actively exploited?

CVE-1999-1273 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-1999-1273?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-1273, 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-1999-1273

📅 Published

🔄 Last Modified

🔗 References (4)