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AirApplication · Adobe

CVE-2009-1866

HIGH · 9.3 CVSS v2.0 Published 2009-07-31
Fix available
A fix is available. Upgrade to after 10.0.22.87 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click Patch available

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 · unedited
Stack-based buffer overflow in Adobe Flash Player before 9.0.246.0 and 10.x before 10.0.32.18, and Adobe AIR before 1.5.2, allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code via unspecified vectors.

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
How this class of weakness works · CWE-119

The program reads or writes outside the bounds of an allocated buffer, corrupting adjacent memory. With crafted input an attacker can overwrite control data and, with effort, redirect execution to their own code. Remediation ranges from bounds checking and safe library functions to compiler mitigations, usually alongside a careful audit of the surrounding code.

General guidance for the memory buffer bounds error class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

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
AirApplication
Affected:<= 1.5.1= 1.0= 1.01= 1.1= 1.5
Flash PlayerApplication
Affected:<= 10.0.22.87= 7.0= 7.0.1= 7.0.25= 7.0.63= 7.0.69.0= 7.0.70.0= 7.1= 7.1.1= 7.2= 8.0= 8.0.24.0
FlexApplication
Affected:= 3.0

CVSS 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
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

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.

dbcve · scoped
Upgrade available Upgrade to a release after 10.0.22.87
Vendor patch www.adobe.com →
Recommended fix High confidence

Flash Player 10.0.32.18 (or 9.0.246.0 for 9.x branch) and Adobe AIR 1.5.2

  1. 1. Identify the currently installed Adobe Flash Player version by navigating to 'About Flash Player' in the right-click context menu or visiting version check sites
  2. 2. Download the fixed Flash Player version 10.0.32.18 (for 10.x branch) or 9.0.246.0 (for 9.x branch) from the official Adobe website archive or trusted download sources
  3. 3. Close all browser instances that may be running Flash Player content
  4. 4. Uninstall the existing Flash Player version through the Windows Control Panel or Mac System Preferences
  5. 5. Install the fixed Flash Player version 10.0.32.18 or 9.0.246.0 by running the downloaded installer
  6. 6. For Adobe AIR, download and install AIR 1.5.2 or later from the Adobe website
  7. 7. Restart all browsers and verify the Flash Player version matches the fixed release
  8. 8. Verify the AIR version through the AIR Settings manager or application's version information
Caveat This is legacy software from 2009; upgrading to these versions may cause compatibility issues with modern web content, and Adobe Flash Player reached end-of-life in December 2020

Generated from the published advisory — verify against the referenced sources before acting.

We can identify the exact fixed release, upgrade, and verify it in staging — typical engagement from $3,200. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2009-1866 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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