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FirefoxWeb browser · Mozilla

CVE-2010-3180

HIGH · 9.3 CVSS v2.0 Published 2010-10-21
Fix available
A fix is available. Upgrade to after 3.5.13 or later.
See remediation →
100/100
Remediation priority · Urgent
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
Use-after-free vulnerability in the nsBarProp function in Mozilla Firefox before 3.5.14 and 3.6.x before 3.6.11, Thunderbird before 3.0.9 and 3.1.x before 3.1.5, and SeaMonkey before 2.0.9 allows remote attackers to execute arbitrary code by accessing the locationbar property of a closed window.

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 confidence

Use-after-free vulnerability in the nsBarProp function allows remote attackers to execute arbitrary code by accessing the locationbar property of a closed window in Mozilla Firefox, Thunderbird, and SeaMonkey.

MitigationUpgrade to Firefox 3.5.14+/3.6.11+, Thunderbird 3.0.9+/3.1.5+, or SeaMonkey 2.0.9+ to remediate this vulnerability.

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
FirefoxWeb browser
Affected:= 3.6= 3.6.2= 3.6.3= 3.6.4= 3.6.6= 3.6.7= 3.6.8= 3.6.9= 3.6.10<= 3.5.13= 1.0= 1.0.1
SeamonkeyApplication
Affected:<= 2.0.8= 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:<= 3.0.8= 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

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Mozilla product
    Check which Mozilla application is installed. On Windows, look in Program Files for Firefox, Thunderbird, or SeaMonkey folders. On Linux, check /usr/bin or use package manager. On macOS, check /Applications.
    Affected if The system has Firefox, Thunderbird, or SeaMonkey installed
  2. Determine Firefox version
    For Firefox: Run 'firefox -v' from command line, or in Firefox go to Help > About Firefox. Record the full version number.
    Affected if Version is 3.6, 3.6.2, 3.6.3, 3.6.4, 3.6.6, 3.6.7, 3.6.8, 3.6.9, 3.6.10, or any 3.5.x version up to and including 3.5.13, or 1.0.x (1.0 or 1.0.1)
  3. Determine SeaMonkey version
    For SeaMonkey: Run 'seamonkey -v' from command line, or in SeaMonkey go to Help > About SeaMonkey. Record the full version number.
    Affected if Version is 2.0.8 or lower, or any 1.0.x version (1.0 through 1.0.9) or 1.1
  4. Determine Thunderbird version
    For Thunderbird: Run 'thunderbird -v' from command line, or in Thunderbird go to Help > About Thunderbird. Record the full version number.
    Affected if Version is 3.0.8 or lower, or any 0.x version (0.1 through 0.8)
  5. Confirm JavaScript is enabled
    In the installed Mozilla product, verify that JavaScript is enabled in the settings (Options > Content in Firefox, or Edit > Preferences > Advanced > Scripts & Plugins). This vulnerability requires JavaScript execution to trigger.
    Affected if JavaScript is enabled in the browser or mail client settings

The system is affected if any Firefox 3.5.x through 3.6.10, SeaMonkey 1.x/2.0.x through 2.0.8, or Thunderbird 0.x/3.0.x through 3.0.8 is installed with JavaScript enabled, because the use-after-free in nsBarProp triggers when accessing the locationbar property of a closed window via script.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 3.5.13
Interim mitigation

Upgrade to Firefox 3.5.14+/3.6.11+, Thunderbird 3.0.9+/3.1.5+, or SeaMonkey 2.0.9+ to remediate this vulnerability.

Recommended fix High confidence

Firefox 3.6.11+/3.5.14+, Thunderbird 3.0.9+/3.1.5+, SeaMonkey 2.0.9+

  1. For Firefox 3.6.x users: Upgrade to Firefox 3.6.11 or later (or migrate to a supported release like Firefox 78.x ESR or newer)
  2. For Firefox 3.5.x users: Upgrade to Firefox 3.5.14 or later
  3. For Thunderbird 3.0.x users: Upgrade to Thunderbird 3.0.9 or later
  4. For Thunderbird 3.1.x users: Upgrade to Thunderbird 3.1.5 or later
  5. For SeaMonkey 1.x users: Upgrade to SeaMonkey 2.0.9 or later
  6. For SeaMonkey 2.0.x users: Upgrade to SeaMonkey 2.0.9 or later
Caveat These are very old end-of-life versions; upgrading may require migrating to modern supported releases and users should back up personal data first

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

Fix this in Firefox Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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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-2010-3180 in production — separate from our analysis above.

No notes yet

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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
  • No spam, self-promotion, credentials, or personal data