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Emerging threatsCritical

CVE-2010-3747Realplayer Memory Corruption

An ActiveX control in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.4, and RealPlayer Enterprise 2.1.2 does not properly initialize an unspecified object component during parsing of a CDDA URI, which allows remote attackers to execute arbitrary code or…

Published Oct 18, 2010 · Updated Apr 28, 2026

Key Facts

Patch immediately
  • CVE-2010-3747 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 35% 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)

35%

Higher than 98.4% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

55/100

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

Weaponized

Public exploit code

2

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Description

An ActiveX control in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.4, and RealPlayer Enterprise 2.1.2 does not properly initialize an unspecified object component during parsing of a CDDA URI, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer dereference and application crash) via a long URI.

Affected Products

17 affected entries in total
ProductAffected versionsFixed in
RealplayerRealnetworks11.0, 11.0.1, 11.0.2, 11.0.3, 11.0.4, 11.0.5, 11.1, 2.1.2n/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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

1 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2010-3747 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.

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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.