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WatchlistCritical

CVE-2010-3749Realplayer Code Injection

The browser-plugin implementation in RealNetworks RealPlayer 11.0 through 11.1 and RealPlayer SP 1.0 through 1.1 allows remote attackers to arguments to the RecordClip method, which allows remote attackers to download an arbitrary program onto a client machine, and execute this…

Published Oct 18, 2010 · Updated Apr 28, 2026

Key Facts

Patch immediately
  • CVE-2010-3749 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Realplayer (Realnetworks), Realplayer Sp (Realnetworks).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 26% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v2

9.3

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

EPSS (30-day exploit likelihood)

26%

Higher than 97.9% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

38/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

1

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Description

The browser-plugin implementation in RealNetworks RealPlayer 11.0 through 11.1 and RealPlayer SP 1.0 through 1.1 allows remote attackers to arguments to the RecordClip method, which allows remote attackers to download an arbitrary program onto a client machine, and execute this program, via a " (double quote) in an argument to the RecordClip method, aka "parameter injection."

Affected Products

16 affected entries in total
ProductAffected versionsFixed in
RealplayerRealnetworks11.0, 11.0.1, 11.0.2, 11.0.3, 11.0.4, 11.0.5, 11.1n/a
Realplayer SpRealnetworks1.0.0, 1.0.1, 1.0.2, 1.0.5, 1.1, 1.1.1, 1.1.2, 1.1.3n/a

Timeline

  1. Publicly disclosed

    Oct 18, 2010

  2. Last updated

    Apr 28, 2026

Weakness Type

  • CWE-94 Improper Control of Generation of Code ('Code Injection')

References

1 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2010-3749 On Your Attack Surface?

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

To report an error, contact Brandefense.