Which products and versions are affected by CVE-2012-5691?

Affected: Realplayer (Realnetworks) versions 10.0, 10.5, 11.0, 11.0.1, 11.0.2, 11.0.2.1744, 11.0.2.2315, 11.0.3; Realplayer Sp (Realnetworks) versions 1.0.0, 1.0.1, 1.0.2, 1.0.5, 1.1, 1.1.1, 1.1.2, 1.1.3. The full list is in the CVE brief.

Is CVE-2012-5691 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2012-5691 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2012-5691?

Public exploit code is available.

Is there a fix for CVE-2012-5691?

Fixed versions are available, including Realplayer 16.0.0.

How urgently should CVE-2012-5691 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2012-5691

CriticalPublic exploit

Buffer overflow in RealNetworks RealPlayer before 16.0.0.282 and RealPlayer SP 1.0 through 1.1.5 allows remote attackers to execute arbitrary code via a crafted RealMedia file.

Published Dec 19, 2012 · Updated Apr 28, 2026

Key Facts

Patch immediately

CVE-2012-5691 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 53% probability of exploitation in the next 30 days.
Fixed versions are available, including Realplayer 16.0.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

9.3

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

EPSS (30-day exploit likelihood)

53%

Higher than 98.9% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2012-5691 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Buffer overflow in RealNetworks RealPlayer before 16.0.0.282 and RealPlayer SP 1.0 through 1.1.5 allows remote attackers to execute arbitrary code via a crafted RealMedia file.

Affected Products

44 affected entries in total

Product	Affected versions	Fixed in
RealplayerRealnetworks	10.0, 10.5, 11.0, 11.0.1, 11.0.2, 11.0.2.1744, 11.0.2.2315, 11.0.3	16.0.0
Realplayer SpRealnetworks	1.0.0, 1.0.1, 1.0.2, 1.0.5, 1.1, 1.1.1, 1.1.2, 1.1.3	n/a

Patched Releases

Realplayer

16.0.0

Timeline

Publicly disclosed
Dec 19, 2012
Last updated
Apr 28, 2026

Weakness Type

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

advisoryhttp://service.real.com/realplayer/security/12142012_player/en/
exploitMSF real_player_url_property_bof.rb
exploitExploitDB-23694

FAQ

Common Questions.

Buffer overflow in RealNetworks RealPlayer before 16.0.0.282 and RealPlayer SP 1.0 through 1.1.5 allows remote attackers to execute arbitrary code via a crafted RealMedia file.
Affected: Realplayer (Realnetworks) versions 10.0, 10.5, 11.0, 11.0.1, 11.0.2, 11.0.2.1744, 11.0.2.2315, 11.0.3; Realplayer Sp (Realnetworks) versions 1.0.0, 1.0.1, 1.0.2, 1.0.5, 1.1, 1.1.1, 1.1.2, 1.1.3. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Realplayer 16.0.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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