CVE-2009-4244

critical

Published 2010-01-25 · Modified 2026-04-29

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CVSS v3

—

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.3

Description

Heap-based buffer overflow 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 an SIPR codec field with a small length value that triggers incorrect memory allocation.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

macOS Fixed 1 release

Version	Status	Fixed in
—	Not affected	—

Application impact

Vendor	Product	Versions
realnetworks	realplayer_sp	`1.0.0`
realnetworks	realplayer	`10.0`
realnetworks	realplayer	`11.0.4`
realnetworks	helix_player	`11.0.1`
realnetworks	realplayer	`11.0.3`
realnetworks	realplayer_sp	`1.0.1`
realnetworks	realplayer	`10.5`
realnetworks	realplayer	`11.0`
realnetworks	realplayer	`11.0.1`
realnetworks	realplayer_enterprise
realnetworks	helix_player	`10.0`
realnetworks	realplayer	`11.0.5`
realnetworks	realplayer	`11.0.2`
realnetworks	realplayer	`10.1`
realnetworks	helix_player	`11.0.0`
realnetworks	realplayer	`11.0.0`

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.