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CVE Record

CVE-2011-4257: The Cook codec in RealNetworks RealPlayer before 15.0.0 allows remote attackers to execute arbitrary code v...

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

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw affects the Cook audio codec in RealNetworks RealPlayer before 15.0.0. A crafted media input could let an attacker run code on a user’s computer. Business urgency depends on whether legacy RealPlayer remains installed and used to open untrusted content. Exposure is most likely on endpoints where RealPlayer before 15.0.0 is installed, especially if users can open externally supplied media. Modern environments may have low exposure if RealPlayer has been removed or upgraded. Prioritize confirmation over broad emergency action. If RealPlayer is still deployed, remediate promptly because the issue is code execution in a media parser. If not present, record non-exposure and close with evidence. Mitigation focus: Inventory endpoints for RealPlayer installations and recorded versions.; Upgrade RealPlayer versions before 15.0.0 following RealNetworks guidance.; Remove RealPlayer where there is no business requirement..

Prepared

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Potential ATT&CK relevance

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Execution behavior lookup

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CVE-2011-4257 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
1Source links

CVSS and timeline data

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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