CVE-2008-1309

CVE-2008-1309 is a critical-severity vulnerability in Realnetworks Realplayer with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 46% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-399.

Key facts

Description

The RealAudioObjects.RealAudio ActiveX control in rmoc3260.dll in RealNetworks RealPlayer Enterprise, RealPlayer 10, RealPlayer 10.5 before build 6.0.12.1675, and RealPlayer 11 before 11.0.3 build 6.0.14.806 does not properly manage memory for the (1) Console or (2) Controls property, which allows remote attackers to execute arbitrary code or cause a denial of service (browser crash) via a series of assignments of long string values, which triggers an overwrite of freed heap memory.

Frequently asked questions

What is CVE-2008-1309?
The RealAudioObjects.RealAudio ActiveX control in rmoc3260.dll in RealNetworks RealPlayer Enterprise, RealPlayer 10, RealPlayer 10.5 before build 6.0.12.1675, and RealPlayer 11 before 11.0.3 build 6.0.14.806 does not properly manage memory for the (1) Console or (2) Controls property, which allows remote attackers to execute arbitrary code or cause a denial of service (browser crash) via a series of assignments of long string values, which triggers an overwrite of freed heap memory.
How severe is CVE-2008-1309?
CVE-2008-1309 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2008-1309 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 46% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1309?
CVE-2008-1309 primarily affects Realnetworks Realplayer. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-1309?
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-2008-1309 published?
CVE-2008-1309 was published on 2008-03-12 and last updated on 2026-06-16.

References

Affected products (4)

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