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Case File

CVE-2009-1135

HIGH · CVSS 9 EPSS 26.45%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-07-15 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 9.0. It affects Microsoft. Its EPSS score suggests a 26.5% probability of exploitation in the next 30 days. It may be remotely exploitable.

CVE
CVE-2009-1135
Severity
HIGH
CVSS
9
EPSS
26.45%
Microsoft

Original NVD Description

Microsoft Internet Security and Acceleration (ISA) Server 2006 Gold and SP1, when Radius OTP is enabled, uses the HTTP-Basic authentication method, which allows remote attackers to gain the privileges of an arbitrary account, and access published web pages, via vectors involving attempted access to a network resource behind the ISA Server, aka "Radius OTP Bypass Vulnerability."