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.
CVE-2010-0121
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 2%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 72.4%
- KEV
- Not listed
Published
December 14, 2010
Last Modified
April 29, 2026
References (4)
- PSIRT-CNA@flexerasoftwarehttp://service.real.com/realplayer/security/12102010_player/en/
- PSIRT-CNA@flexerasoftwarehttp://www.securitytracker.com/id?1024861
- af854a3a-2127-422b-91ae-364da2661108http://service.real.com/realplayer/security/12102010_player/en/
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1024861
Frequently asked(4)
What is CVE-2010-0121?
CVE-2010-0121 is a none vulnerability published on December 14, 2010. 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.
When was CVE-2010-0121 disclosed?
CVE-2010-0121 was first published in the National Vulnerability Database on December 14, 2010, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2010-0121 actively exploited?
CVE-2010-0121 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 72.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2010-0121?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2010-0121, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2010-0121
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