CVE-2011-4257

critical

Description

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

References

https://euvd.enisa.europa.eu/vulnerability/EUVD-2011-4199

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

Details

Source: Mitre, NVD

Published: 2011-11-24

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 9.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.02889