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CVE-2010-4376

28
FAUCET Score

CVE-2010-4376 describes a critical heap-based buffer overflow vulnerability in RealNetworks RealPlayer versions 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.1, Mac RealPlayer 11.0 through 11.1, and Linux RealPlayer 11.0.2.1744. This flaw allows remote attackers to execute arbitrary code by supplying a large Screen Width value within the Screen Descriptor header of a GIF87a file delivered via an RTSP stream. With a CVSS score of 9.3, this vulnerability is highly severe, requiring no authentication and having a medium attack complexity, but leading to complete compromise of confidentiality, integrity, and availability. While no active exploitation, Metasploit, Nuclei, or ExploitDB entries are noted, and community discussion and media coverage are minimal, its high FAUCET Risk Score of 82/100 indicates significant potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
11.0CPE matchmatch criteria
cpe:2.3:a:realnetworks:realplayer:11.0:*:*:*:*:*:*:*
11.0.1CPE matchmatch criteria
cpe:2.3:a:realnetworks:realplayer:11.0.1:*:*:*:*:*:*:*
11.0.2CPE matchmatch criteria
cpe:2.3:a:realnetworks:realplayer:11.0.2:*:*:*:*:*:*:*
11.0.3CPE matchmatch criteria
cpe:2.3:a:realnetworks:realplayer:11.0.3:*:*:*:*:*:*:*
11.0.4CPE matchmatch criteria
cpe:2.3:a:realnetworks:realplayer:11.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.41%
Probability of exploitation in next 30 days
EPSS Percentile
93.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0641 is in the 68th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: HelixPlayer-1:1.0.6-1.el4_8.1
View patch

Vendor Advisories (1)

redhatCVE-2010-4376Critical

HelixPlayer multiple flaws (CVE-2010-2997, CVE-2010-4375, CVE-2010-4378, CVE-2010-4379, CVE-2010-4382, CVE-2010-4383, CVE-2010-4385, CVE-2010-4386, CVE-2010-4392, CVE-2010-4376)

Dec 10, 2010

References

service.real.com / realplayer/security/12102010_player/en
Vendor Advisory
securityfocus.com / bid/45411
securitytracker.com / id
zerodayinitiative.com / advisories/ZDI-10-271