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CVE-2011-2950

66
FAUCET Score

CVE-2011-2950 describes a heap-based buffer overflow in RealNetworks RealPlayer versions 11.0 through 11.1, 14.0.0 through 14.0.5, and RealPlayer SP 1.0 through 1.1.5, specifically within the qcpfformat.dll. This critical vulnerability allows remote attackers to execute arbitrary code by enticing a user to open a specially crafted QCP file. With a CVSS score of 9.3, it poses a severe risk, enabling complete compromise of confidentiality, integrity, and availability with medium attack complexity and no authentication required. While not on the KEV catalog or actively exploited, public exploit code is available via Metasploit and ExploitDB, indicating a high potential for exploitation, despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
11.0CPE matchmatch criteria
cpe:2.3:a:realnetworks:realplayer:11.0:*:*:*:*:*:*:*
11.1CPE matchmatch criteria
cpe:2.3:a:realnetworks:realplayer:11.1:*:*:*:*:*:*:*
14.0.0CPE matchmatch criteria
cpe:2.3:a:realnetworks:realplayer:14.0.0:*:*:*:*:*:*:*
14.0.1CPE matchmatch criteria
cpe:2.3:a:realnetworks:realplayer:14.0.1:*:*:*:*:*:*:*
14.0.2CPE matchmatch criteria
cpe:2.3:a:realnetworks:realplayer:14.0.2:*:*:*:*:*:*:*

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
28.61%
Probability of exploitation in next 30 days
EPSS Percentile
97.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: RealNetworks Realplayer QCP Parsing Heap Overflow · Aug 16, 2011
ExploitDB: EDB-17849 · Sep 17, 2011
This CVE's current EPSS score of 0.2861 is in the 92nd percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 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

Remediation records are not available for this CVE.

References

securityreason.com / securityalert/8388
service.real.com / realplayer/security/08162011_player/en
Vendor Advisory
securityfocus.com / bid/49172
securitytracker.com / id
zerodayinitiative.com / advisories/ZDI-11-265