CVE-2007-1921

CVE-2007-1921 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.

Key facts

Description

LIBSNDFILE.DLL, as used by AOL Nullsoft Winamp 5.33 and possibly other products, allows remote attackers to execute arbitrary code via a crafted .MAT file that contains a value that is used as an offset, which triggers memory corruption.

Frequently asked questions

What is CVE-2007-1921?
LIBSNDFILE.DLL, as used by AOL Nullsoft Winamp 5.33 and possibly other products, allows remote attackers to execute arbitrary code via a crafted .MAT file that contains a value that is used as an offset, which triggers memory corruption.
How severe is CVE-2007-1921?
CVE-2007-1921 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-1921 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1921?
CVE-2007-1921 affects Nullsoft Winamp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-1921?
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-2007-1921 published?
CVE-2007-1921 was published on 2007-04-10 and last updated on 2026-06-16.

References

Affected products (1)

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