CVE-2009-4247

critical
Published 2010-01-25 ยท Modified 2026-04-29
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
9.3

Description

Stack-based buffer overflow in protocol/rtsp/rtspclnt.cpp in RealNetworks RealPlayer 10; RealPlayer 10.5 6.0.12.1040 through 6.0.12.1741; RealPlayer 11 11.0.x; RealPlayer SP 1.0.0 and 1.0.1; RealPlayer Enterprise; Mac RealPlayer 10, 10.1, 11.0, and 11.0.1; Linux RealPlayer 10, 11.0.0, and 11.0.1; and Helix Player 10.x, 11.0.0, and 11.0.1 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via an ASM RuleBook with a large number of rules, related to an "array overflow."

Predictions

Exploit likelihood
20%
Patch ETA
โ€”

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 โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ 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 macOS Fixed 1 release
VersionStatusFixed in
โ€” Not affected โ€”

Application impact

VendorProductVersionsFixed
realnetworksrealplayer10.0
realnetworksrealplayer10.5
realnetworksrealplayer11.0
realnetworksrealplayer11.0.1
realnetworksrealplayer11.0.2
realnetworksrealplayer11.0.3
realnetworksrealplayer11.0.4
realnetworksrealplayer11.0.5
realnetworksrealplayer_enterprise
realnetworksrealplayer_sp1.0.0
realnetworksrealplayer_sp1.0.1
realnetworksrealplayer10.1
realnetworkshelix_player10.0
realnetworkshelix_player11.0.0
realnetworkshelix_player11.0.1
realnetworksrealplayer11.0.0

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.