Is CVE-2009-4356 actively exploited?

CVE-2009-4356 has no public evidence of in-the-wild exploitation as of 2026-04-23.

What is the CVSS score for CVE-2009-4356?

CVE-2009-4356 has a CVSS score of 9.3 (UNKNOWN severity). Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C.

How do I patch CVE-2009-4356?

Patch guidance is available from nullsoft security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2009-4356.

CVE-2009-4356 - remediation guidance & executive summary

Q: Which products are affected by CVE-2009-4356?

96 products: nullsoft winamp, nullsoft winamp, nullsoft winamp, nullsoft winamp, nullsoft winamp, and 91 more.

Description

Multiple integer overflows in the jpeg.w5s and png.w5s filters in Winamp before 5.57 allow remote attackers to execute arbitrary code via malformed (1) JPEG or (2) PNG data in an MP3 file.

CVSS Metrics

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Access Vector: network
Access Cmplx: medium
Auth: none
Confidentiality: complete
Integrity: complete
Availability: complete
Weaknesses: CWE-189

Metadata

Primary Vendor: NULLSOFT
Published: 12/18/2009
Last Modified: 4/23/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

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Remediation Guidance

Executive Summary

View on NIST NVD