CVE-2009-4243

Name: CVE-2009-4243
Creator: NVD / NIST
Published: 2010-01-25T19:30:01.37+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.42%

Last modified Jun 16, 2026

CVE-2009-4243 is a vulnerability of currently unknown severity. 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.". EPSS estimates a 3.42% chance of exploitation in the next 30 days.

Description

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."

Metrics

EPSS Probability

3.42%

87.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Realnetworks	Realplayer	10.0
Realnetworks	Realplayer	10.5
Realnetworks	Realplayer	11.0
Realnetworks	Realplayer	11.0.1
Realnetworks	Realplayer	11.0.2
Realnetworks	Realplayer	11.0.3
Realnetworks	Realplayer	11.0.4
Realnetworks	Realplayer	11.0.5
Realnetworks	Realplayer Enterprise	All versions
Realnetworks	Realplayer Sp	1.0.0
Realnetworks	Realplayer Sp	1.0.1
Realnetworks	Realplayer	10.1
Realnetworks	Helix Player	10.0
Realnetworks	Helix Player	11.0.0
Realnetworks	Helix Player	11.0.1
Realnetworks	Realplayer	11.0.0

References

http://osvdb.org/61967
http://secunia.com/advisories/38218Vendor Advisory
http://securitytracker.com/id?1023489Patch
http://service.real.com/realplayer/security/01192010_player/en/Patch, Vendor Advisory
http://www.securityfocus.com/bid/37880
http://www.vupen.com/english/advisories/2010/0178Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/55796
http://osvdb.org/61967
http://secunia.com/advisories/38218Vendor Advisory
http://securitytracker.com/id?1023489Patch
http://service.real.com/realplayer/security/01192010_player/en/Patch, Vendor Advisory
http://www.securityfocus.com/bid/37880
http://www.vupen.com/english/advisories/2010/0178Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/55796

Timeline

Published: Jan 25, 2010
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-4243?

How severe is CVE-2009-4243?

Severity scoring for CVE-2009-4243 is pending analysis. The EPSS model estimates a 3.42% probability of exploitation in the next 30 days.

How do I fix CVE-2009-4243?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-4243?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST