CVE-2009-4074: n/a vulnerability

CVE-2009-4074: The XSS Filter in Microsoft Internet Explorer 8 allows remote attackers to leverage the "response-changing...

The XSS Filter in Microsoft Internet Explorer 8 allows remote attackers to leverage the "response-changing mechanism" to conduct cross-site scripting (XSS) attacks against web sites that have no inherent XSS vulnerabilities, related to the details of output encoding and improper modification of an HTML attribute, aka "XSS Filter Script Handling Vulnerability."

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 06:54 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2009-4074 is a flaw in Internet Explorer 8’s built-in XSS Filter. A malicious site or link could cause the browser’s filter to alter a page in a way that creates cross-site scripting where the site itself was not originally vulnerable. Exposure is mainly legacy environments where Internet Explorer 8 is still used or supported in compatibility workflows. Modern environments not running IE8 are unlikely to be affected by this specific browser flaw. Treat as a legacy-risk cleanup item unless IE8 is still in operational use. If IE8 remains, prioritize remediation because browser-side XSS can expose sessions, data, and trusted web workflows. Mitigation focus: Apply Microsoft guidance from MS10-002 where IE8 remains present.; Remove or replace Internet Explorer 8 in enterprise workflows.; Restrict legacy browser use to isolated, approved business applications..

Prepared: Jun 28, 2026, 14:18 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

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 25, 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:7715CVE reference · vdb-entry, signature
MS10-002CVE 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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