CVE-2009-1122: n/a vulnerability

CVE-2009-1122: The WebDAV extension in Microsoft Internet Information Services (IIS) 5.0 on Windows 2000 SP4 does not prop...

The WebDAV extension in Microsoft Internet Information Services (IIS) 5.0 on Windows 2000 SP4 does not properly decode URLs, which allows remote attackers to bypass authentication, and possibly read or create files, via a crafted HTTP request, aka "IIS 5.0 WebDAV Authentication Bypass Vulnerability," a different vulnerability than CVE-2009-1535.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 05:04 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old IIS WebDAV flaw where specially formed web requests could bypass authentication on IIS 5.0 running Windows 2000 SP4. If exposed, an attacker might access protected content and possibly read or create files. The main business risk is any forgotten legacy server still reachable from users or the internet. Exposure is likely limited to legacy Windows 2000 SP4 systems running IIS 5.0 with WebDAV enabled. Internet-facing legacy web servers, intranet document portals, and forgotten archived hosts are the highest-priority places to check. Prioritize this when legacy Windows web servers remain in service. Affected technology is obsolete, but the potential impact is serious if exposed: authentication controls may fail and files may be accessed or created without authorization. Mitigation focus: Review Microsoft MS09-020 and apply the vendor-provided security update where still possible.; Retire or isolate Windows 2000 and IIS 5.0 systems that cannot be patched.; Disable WebDAV if it is not required for the application..

Prepared: Jun 28, 2026, 10:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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description · low confidence lookup

Credential and access behavior lookup

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cve · low confidence lookup

CVE-2009-1122 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 10, 2009, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
oval:org.mitre.oval:def:5861CVE reference · vdb-entry, signature
MS09-020CVE reference · vendor-advisory, x_refsource_MS

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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