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FirefoxWeb browser · Mozilla

CVE-2010-3131

HIGH · 9.3 CVSS v2.0 Published 2010-08-26
Fix available
A fix is available. Upgrade to after 3.5.11 or later.
See remediation →
100/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges Zero-click

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
Untrusted search path vulnerability in Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 on Windows XP allows local users, and possibly remote attackers, to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse dwmapi.dll that is located in the same folder as a .htm, .html, .jtx, .mfp, or .eml file.

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

A detailed technical summary for this CVE is being prepared.

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
FirefoxWeb browser
Affected:= 3.6= 3.6.2= 3.6.3= 3.6.4= 3.6.6= 3.6.7= 3.6.8<= 3.5.11= 1.0= 1.0.1= 1.0.2= 1.0.3
SeamonkeyApplication
Affected:<= 2.0.6= 1.0= 1.0.1= 1.0.2= 1.0.3= 1.0.4= 1.0.5= 1.0.6= 1.0.7= 1.0.8= 1.0.9= 1.1
ThunderbirdApplication
Affected:<= 3.0.6= 0.1= 0.2= 0.3= 0.4= 0.5= 0.6= 0.7= 0.7.1= 0.7.2= 0.7.3= 0.8

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 3.5.11
Recommended fix High confidence

Firefox 3.6.9 (or later 3.6.x/3.5.12+); Thunderbird 3.0.7 (or later 3.1.x/3.1.3+); SeaMonkey 2.0.7 (or later 2.0.x)

  1. 1. Close all instances of the affected Mozilla application (Firefox, Thunderbird, or SeaMonkey)
  2. 2. Back up your bookmarks, passwords, and any important data from the current installation
  3. 3. Download the fixed version from the official Mozilla website: Firefox 3.6.9 (or later 3.6.x), Thunderbird 3.0.7 (or later 3.1.x), or SeaMonkey 2.0.7 (or later)
  4. 4. Install the fixed version by running the downloaded installer
  5. 5. Restart the application and verify it launches successfully
  6. 6. Restore your backed-up data (bookmarks, settings) into the new version
Caveat These are legacy versions from 2010; upgrading may cause compatibility issues with modern websites and add-ons; consider migrating to current supported versions (Firefox 115+, Thunderbird 115+) for full security support

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

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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-2010-3131 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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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