How severe is CVE-2009-0376?

CVE-2009-0376 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-0376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0376?

CVE-2009-0376 affects Realnetworks Realplayer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-0376?

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-2009-0376 published?

CVE-2009-0376 was published on 2009-02-08 and last updated on 2026-06-16.

CVE-2009-0376

CVE-2009-0376 is a critical-severity vulnerability in Realnetworks Realplayer 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

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Realnetworks Realplayer
Published: 2009-02-08
Last modified: 2026-06-16

Description

Heap-based buffer overflow in a DLL file in RealNetworks RealPlayer 10, RealPlayer 10.5 6.0.12.1040 through 6.0.12.1741, RealPlayer 11 11.0.0 through 11.0.4, RealPlayer Enterprise, Mac RealPlayer 10 and 10.1, Linux RealPlayer 10, and Helix Player 10.x allows remote attackers to execute arbitrary code via a crafted Internet Video Recording (IVR) file with a modified field that controls an unspecified structure length and triggers heap corruption, related to use of RealPlayer through a Windows Explorer plugin.

Frequently asked questions

What is CVE-2009-0376?: Heap-based buffer overflow in a DLL file in RealNetworks RealPlayer 10, RealPlayer 10.5 6.0.12.1040 through 6.0.12.1741, RealPlayer 11 11.0.0 through 11.0.4, RealPlayer Enterprise, Mac RealPlayer 10 and 10.1, Linux RealPlayer 10, and Helix Player 10.x allows remote attackers to execute arbitrary code via a crafted Internet Video Recording (IVR) file with a modified field that controls an unspecified structure length and triggers heap corruption, related to use of RealPlayer through a Windows Explorer plugin.
How severe is CVE-2009-0376?: CVE-2009-0376 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-0376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0376?: CVE-2009-0376 affects Realnetworks Realplayer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-0376?: 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-2009-0376 published?: CVE-2009-0376 was published on 2009-02-08 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:realnetworks:realplayer:11:*:*:*:*:*:*:*

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