CVE-2009-4242: n/a vulnerability

CVE-2009-4242: Heap-based buffer overflow in the CGIFCodec::GetPacketBuffer function in datatype/image/gif/common/gifcodec...

Heap-based buffer overflow in the CGIFCodec::GetPacketBuffer function in datatype/image/gif/common/gifcodec.cpp in RealNetworks RealPlayer 10; RealPlayer 10.5 6.0.12.1040 through 6.0.12.1741; RealPlayer 11 11.0.0 through 11.0.4; RealPlayer Enterprise; Mac RealPlayer 10, 10.1, and 11.0; Linux RealPlayer 10; and Helix Player 10.x allows remote attackers to execute arbitrary code via a GIF file with crafted chunk sizes that trigger improper memory allocation.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 06:54 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2009-4242 is a legacy RealPlayer and Helix Player flaw where a specially crafted GIF can corrupt memory and potentially run attacker code. Business risk depends on whether affected players remain installed or embedded in workflows. Exposure is most likely on legacy Windows, Mac, or Linux systems still running the listed RealPlayer, RealPlayer Enterprise, Mac RealPlayer, Linux RealPlayer, or Helix Player 10.x versions. Prioritize this if legacy media software remains in the environment. If inventory confirms no affected RealPlayer or Helix Player installations, residual business risk is likely low. Mitigation focus: Inventory systems for affected RealPlayer and Helix Player versions.; Apply updates from RealNetworks or Red Hat guidance where applicable.; Remove unsupported legacy media players where business use is unnecessary..

Prepared: Jun 28, 2026, 03:36 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Execution behavior lookup

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CVE-2009-4242 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jan 25, 2010, 19:00 UTC (UTC+00:00)

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

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
oval:org.mitre.oval:def:10144CVE reference · vdb-entry, signature
realplayer-gif-bo(55795)CVE reference · vdb-entry, x_refsource_XF
https://bugzilla.redhat.com/show_bug.cgi?id=561436CVE reference · x_refsource_CONFIRM
https://helixcommunity.org/viewcvs/datatype/image/gif/common/gifcodec.cpp?view=log#rev1.8CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.