CVE-2009-2478
CVE-2009-2478 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.
Key facts
- Severity: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 8% (94th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-189
- Affected product: Mozilla Firefox
- Published:
- Last modified:
Description
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."
Frequently asked questions
- What is CVE-2009-2478?
- 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."
- How severe is CVE-2009-2478?
- CVE-2009-2478 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2009-2478 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-2478?
- CVE-2009-2478 affects Mozilla Firefox. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2009-2478?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2009-2478 published?
- CVE-2009-2478 was published on 2009-07-16 and last updated on 2026-06-16.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=502648
- https://bugzilla.mozilla.org/show_bug.cgi?id=503286
- https://www.redhat.com/archives/fedora-package-announce/2009-July/msg00909.html
Affected products (1)
- cpe:2.3:a:mozilla:firefox:3.5:*:*:*:*:*:*:*
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