How severe is CVE-2011-2954?

CVE-2011-2954 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2011-2954 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2954?

CVE-2011-2954 primarily affects Realnetworks Realplayer. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2954?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2011-2954 published?

CVE-2011-2954 was published on 2011-08-18 and last updated on 2026-06-16.

CVE-2011-2954

CVE-2011-2954 is a critical-severity vulnerability in Realnetworks Realplayer with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Realnetworks Realplayer
Published: 2011-08-18
Last modified: 2026-06-16

Description

Use-after-free vulnerability in the AutoUpdate feature in RealNetworks RealPlayer 11.0 through 11.1 and 14.0.0 through 14.0.5 and RealPlayer SP 1.0 through 1.1.5, when an Embedded RealPlayer is used, allows remote attackers to execute arbitrary code via unspecified vectors.

Frequently asked questions

What is CVE-2011-2954?: Use-after-free vulnerability in the AutoUpdate feature in RealNetworks RealPlayer 11.0 through 11.1 and 14.0.0 through 14.0.5 and RealPlayer SP 1.0 through 1.1.5, when an Embedded RealPlayer is used, allows remote attackers to execute arbitrary code via unspecified vectors.
How severe is CVE-2011-2954?: CVE-2011-2954 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2011-2954 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2954?: CVE-2011-2954 primarily affects Realnetworks Realplayer. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2954?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2011-2954 published?: CVE-2011-2954 was published on 2011-08-18 and last updated on 2026-06-16.

References

Affected products (18)

cpe:2.3:a:realnetworks:realplayer:11.0:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer:11.1:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer:14.0.0:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer:14.0.1:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer:14.0.2:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer:14.0.3:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer:14.0.4:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer:14.0.5:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer_sp:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer_sp:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer_sp:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer_sp:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer_sp:1.1:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer_sp:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer_sp:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer_sp:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer_sp:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:realplayer_sp:1.1.5:*:*:*:*:*:*:*

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