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Fencer Vulns
medium 5.0

CVE-2009-2478 json

Mozilla Firefox 3.5 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via unspecified v…

published 2009-07-16 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2473

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.8%
EPSS 7.8% chance of exploitation in 30 days, percentile 94%
public exploits
2
Exploit-DB

Summary

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."

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-2478 updated cvss 6.8

firefox 3.5 various flaws

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-9137)
  2. Published

Exploit prediction

7.81% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-9181 Mozilla Firefox 3.5 - 'Font tags' Remote HeapSpray (1) remote, 2009-07-17
  • EDB-9137 Mozilla Firefox 3.5 - Font tags Remote Buffer Overflow remote, 2009-07-13
  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=503286 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.