Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2009-4243

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 and 10.1, Linux RealPlayer 10, and Helix Player 10.x allow remote attackers to have an unspecified impact via a crafted media file that uses HTTP chunked transfer coding, related to an "overflow."

Security Impact Summary

CVE-2009-4243 is a security vulnerability that . Impacting 6 products from realnetworks, from realnetworks, from realnetworks and 3 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2010, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2010-01-25T19:30:01.370

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 9.3 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

10.0

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	realnetworks	realplayer	10.0	Yes
Application	realnetworks	realplayer	10.5	Yes
Application	realnetworks	realplayer	11.0	Yes
Application	realnetworks	realplayer	11.0.1	Yes
Application	realnetworks	realplayer	11.0.2	Yes
Application	realnetworks	realplayer	11.0.3	Yes
Application	realnetworks	realplayer	11.0.4	Yes
Application	realnetworks	realplayer	11.0.5	Yes
Application	realnetworks	realplayer_enterprise	*	Yes
Application	realnetworks	realplayer_sp	1.0.0	Yes
Application	realnetworks	realplayer_sp	1.0.1	Yes
Operating System	microsoft	windows	*	No
Application	realnetworks	realplayer	10.0	Yes
Application	realnetworks	realplayer	10.1	Yes
Application	realnetworks	realplayer	11.0	Yes
Application	realnetworks	realplayer	11.0.1	Yes
Operating System	apple	mac_os_x	*	No
Application	realnetworks	helix_player	10.0	Yes
Application	realnetworks	helix_player	11.0.0	Yes
Application	realnetworks	helix_player	11.0.1	Yes
Application	realnetworks	realplayer	10.0	Yes
Application	realnetworks	realplayer	11.0.0	Yes
Application	realnetworks	realplayer	11.0.1	Yes

References

http://osvdb.org/61967 ([email protected])
http://secunia.com/advisories/38218 Vendor Advisory ([email protected])
http://securitytracker.com/id?1023489 Patch ([email protected])
http://service.real.com/realplayer/security/01192010_player/en/ Patch, Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/37880 ([email protected])
http://www.vupen.com/english/advisories/2010/0178 Patch, Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/55796 ([email protected])
http://osvdb.org/61967 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/38218 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://securitytracker.com/id?1023489 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://service.real.com/realplayer/security/01192010_player/en/ Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/37880 (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/0178 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/55796 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For realnetworks's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.