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4.3

RealPlayer lets attackers load any ActiveX control

CVE-2010-4388 · published 15 years ago
Summary

Certain web page components in RealPlayer versions 11.0‑11.1, RealPlayer SP 1.0‑1.1.5, and RealPlayer Enterprise 2.1.2‑2.1.3 can be tricked into running code that bypasses the normal security limits on the local computer. This could let a remote hacker load and run arbitrary ActiveX components, potentially exposing the system to further threats. Apply the latest patches from RealNetworks or upgrade to a newer, secured version of RealPlayer as soon as possible.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
realnetworks realplayer 11.0
11.0.1
11.0.2
11.0.3
11.0.4
11.0.5
11.1
2.1.2
2.1.3
cpe:2.3:a:realnetworks:realplayer:11.0:*:*:*:*:*:*:*
realnetworks realplayer_sp 1.0.0
1.0.1
1.0.2
1.0.5
1.1
1.1.1
1.1.2
1.1.3
1.1.4
1.1.5
cpe:2.3:a:realnetworks:realplayer_sp:1.0.0:*:*:*:*:*:*:*
Original advisory text
The (1) Upsell.htm, (2) Main.html, and (3) Custsupport.html components in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, and RealPlayer Enterprise 2.1.2 and 2.1.3 allow...
The (1) Upsell.htm, (2) Main.html, and (3) Custsupport.html components in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, and RealPlayer Enterprise 2.1.2 and 2.1.3 allow remote attackers to inject code into the RealOneActiveXObject process, and consequently bypass intended Local Machine Zone restrictions and load arbitrary ActiveX controls, via unspecified vectors.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
4.3 Medium
Exploitation
1% chance of attack within 30 days
Type
CWE-20Improper Input Validation
Timeline
Published14 Dec 2010
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2010-4388 · NVD
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