CVE-2009-0186

CVE-2009-0186 is a critical-severity vulnerability in Nullsoft Winamp 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-189.

Key facts

Description

Integer overflow in libsndfile 1.0.18, as used in Winamp and other products, allows context-dependent attackers to execute arbitrary code via crafted description chunks in a CAF audio file, leading to a heap-based buffer overflow.

Frequently asked questions

What is CVE-2009-0186?
Integer overflow in libsndfile 1.0.18, as used in Winamp and other products, allows context-dependent attackers to execute arbitrary code via crafted description chunks in a CAF audio file, leading to a heap-based buffer overflow.
How severe is CVE-2009-0186?
CVE-2009-0186 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-0186 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0186?
CVE-2009-0186 primarily affects Nullsoft Winamp. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-0186?
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-2009-0186 published?
CVE-2009-0186 was published on 2009-03-05 and last updated on 2026-06-16.

References

Affected products (25)

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