CVE-1999-1547: Oracle Web Listener 2.1 allows remote attackers to bypass access restrictions by replacing a character in the URL with i

Published n/a Updated 2026-08-21T04:30:51.067Z

Summary

Oracle Web Listener 2.1 allows remote attackers to bypass access restrictions by replacing a character in the URL with its HTTP-encoded (hex) equivalent.

Severity

UNKNOWN

Source Attribution

Source: NVD · Updated: 2026-08-21T04:30:51.067Z · Confidence: high

Impact

Based on CVSS vector: n/a — assess confidentiality, integrity, and availability impact via the official vector documentation.

Affected Software

Fix

Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.

References