CVE-2009-2064
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedMicrosoft Internet Explorer 8, and possibly other versions, detects http content in https web pages only when the top-level frame uses https, which allows man-in-the-middle attackers to execute arbitrary web script, in an https site's context, by modifying an http page to include an https iframe that references a script file on an http site, related to "HTTP-Intended-but-HTTPS-Loadable (HPIHSL) pages."
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceIE8 fails to properly detect and block HTTP content when loaded in an HTTPS context under specific conditions - specifically when an HTTPS iframe references an HTTP script. This allows MITM attackers to inject arbitrary JavaScript into secure pages, executing in the trusted HTTPS origin context.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 8= 5= 5.01= 6= 7= 7.0.5730= 8= 8.0b= 1.0= 1.1= 2.0= 3.0= 4.0= 2002= 2003CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:M/Au:N/C:P/I:P/A:P
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Determine Internet Explorer versionOpen Internet Explorer, click Help > About Internet Explorer. The version number displays in the dialog box.Affected if The version is 8.0 or lower (including 5, 5.01, 6, 7, 7.0.5730, or 8.0b)
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Determine Pocket IE versionOn the Pocket PC/Windows Mobile device, access Pocket IE and check the version through the device's About or Settings menu.Affected if The version is 1.0, 1.1, 2.0, 3.0, 4.0, 2002, or 2003
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Test mixed content blockingLoad an HTTPS webpage that contains an HTTP script tag or HTTP iframe reference. Use developer tools or network inspector to observe whether the HTTP resource loads successfully.Affected if HTTP script or iframe content loads and executes within the HTTPS page context without being blocked or generating a security warning
You are affected if you run Internet Explorer 8 or lower (or Pocket IE versions 1.0-2003) AND your browser allows HTTP resources to load within HTTPS pages.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataEnsure browsers are updated to patched versions; avoid loading HTTP resources within HTTPS pages; implement Content Security Policy headers to block mixed content.
- Consultation1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2009-2064 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2009-2064 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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