CVE-2010-0121

CVE-2010-0121 is a critical-severity vulnerability in Realnetworks Realplayer with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The cook codec in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, Mac RealPlayer 11.0 through 12.0.0.1444, and Linux RealPlayer 11.0.2.1744 does not properly perform initialization, which has unspecified impact and attack vectors.

Frequently asked questions

What is CVE-2010-0121?
The cook codec in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, Mac RealPlayer 11.0 through 12.0.0.1444, and Linux RealPlayer 11.0.2.1744 does not properly perform initialization, which has unspecified impact and attack vectors.
How severe is CVE-2010-0121?
CVE-2010-0121 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2010-0121 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-0121?
CVE-2010-0121 primarily affects Realnetworks Realplayer. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-0121?
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-2010-0121 published?
CVE-2010-0121 was published on 2010-12-14 and last updated on 2026-06-16.

References

Affected products (19)

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