How severe is CVE-2009-3997?

CVE-2009-3997 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-3997 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-2009-3997?

CVE-2009-3997 primarily affects Nullsoft Winamp. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3997?

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-2009-3997 published?

CVE-2009-3997 was published on 2009-12-18 and last updated on 2026-06-16.

CVE-2009-3997

CVE-2009-3997 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

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Nullsoft Winamp
Published: 2009-12-18
Last modified: 2026-06-16

Description

Integer overflow in IN_MOD.DLL (aka the Module Decoder Plug-in) in Winamp before 5.57 might allow remote attackers to execute arbitrary code via an Oktalyzer file that triggers a heap-based buffer overflow.

Frequently asked questions

What is CVE-2009-3997?: Integer overflow in IN_MOD.DLL (aka the Module Decoder Plug-in) in Winamp before 5.57 might allow remote attackers to execute arbitrary code via an Oktalyzer file that triggers a heap-based buffer overflow.
How severe is CVE-2009-3997?: CVE-2009-3997 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-3997 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-2009-3997?: CVE-2009-3997 primarily affects Nullsoft Winamp. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3997?: 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-2009-3997 published?: CVE-2009-3997 was published on 2009-12-18 and last updated on 2026-06-16.

References

Affected products (96)

cpe:2.3:a:nullsoft:winamp:*:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:0.20a:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:0.92:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:1.006:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:1.90:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.0:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.4:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.5e:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.6:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.6x:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.7x:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.9:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.10:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.24:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.50:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.60:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.60:*:full:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.60:*:lite:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.61:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.61:*:full:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.62:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.62:*:standard:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.64:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.64:*:standard:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.65:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.70:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.70:*:full:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.71:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.72:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.73:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.73:*:full:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.74:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.75:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.76:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.77:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.78:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.79:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.80:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.81:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.90:*:*:*:*:*:*:*

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