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5.0

Firefox 3.5 can crash when accessed remotely

CVE-2009-2478 · published 17 years ago
Summary

The Firefox web browser version 3.5 can stop working and close unexpectedly if someone sends it specially crafted data over the network. This can make the browser unavailable for users until it is restarted. Updating to a newer version of Firefox or applying the provided security update will prevent the crash.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
mozilla firefox 3.5
cpe:2.3:a:mozilla:firefox:3.5:*:*:*:*:*:*:*
Original advisory text
Mozilla Firefox 3.5 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via unspecified vectors, related to a "flash bug."
Mozilla Firefox 3.5 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via unspecified vectors, related to a "flash bug."
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.0 Medium
Exploitation
8% chance of attack within 30 days
Type
CWE-189Numeric Errors
Timeline
Published16 Jul 2009
Updated15 Oct 2026
First seen29 Sep 2026
Sources
CVE-2009-2478 · NVD
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