What’s Vulnerable › Vulnerabilities

CVE-2011-4257

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-11-24 · updated 2026-06-16
• Weakness: CWE-94

Description

The Cook codec in RealNetworks RealPlayer before 15.0.0 allows remote attackers to execute arbitrary code via crafted channel data.

Affected products

• RealNetworks Realplayer: through 14.0.7; 4, 5, 6, 7, 8, 10.0 (+23)

References

• http://service.real.com/realplayer/security/11182011_player/en/
• http://service.real.com/realplayer/security/11182011_player/en/

Get alerted when CVE-2011-4257 or the next vulnerability affects your stack