CVE-2009-2203

CVE-2009-2203 is a critical-severity vulnerability in Apple Quicktime with a CVSS 2.0 base score of 9.3. 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-119.

Key facts

Description

Buffer overflow in Apple QuickTime before 7.6.4 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted MPEG-4 video file.

Frequently asked questions

What is CVE-2009-2203?
Buffer overflow in Apple QuickTime before 7.6.4 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted MPEG-4 video file.
How severe is CVE-2009-2203?
CVE-2009-2203 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-2203 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2203?
CVE-2009-2203 primarily affects Apple Quicktime. In total, 131 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2203?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-2203 published?
CVE-2009-2203 was published on 2009-09-10 and last updated on 2026-06-16.

References

Affected products (131)

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