How severe is CVE-2010-4596?

CVE-2010-4596 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2010-4596 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4596?

CVE-2010-4596 primarily affects Realnetworks Helix Server. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4596?

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-2010-4596 published?

CVE-2010-4596 was published on 2011-04-04 and last updated on 2026-06-16.

CVE-2010-4596

CVE-2010-4596 is a critical-severity vulnerability in Realnetworks Helix Server 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-119.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Realnetworks Helix Server
Published: 2011-04-04
Last modified: 2026-06-16

Description

Stack-based buffer overflow in RealNetworks Helix Server 12.x, 13.x, and 14.x before 14.2, and Helix Mobile Server 12.x, 13.x, and 14.x before 14.2, allows remote attackers to execute arbitrary code via a long string in an RTSP request.

Frequently asked questions

What is CVE-2010-4596?: Stack-based buffer overflow in RealNetworks Helix Server 12.x, 13.x, and 14.x before 14.2, and Helix Mobile Server 12.x, 13.x, and 14.x before 14.2, allows remote attackers to execute arbitrary code via a long string in an RTSP request.
How severe is CVE-2010-4596?: CVE-2010-4596 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2010-4596 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4596?: CVE-2010-4596 primarily affects Realnetworks Helix Server. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4596?: 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-2010-4596 published?: CVE-2010-4596 was published on 2011-04-04 and last updated on 2026-06-16.

References

Affected products (10)

cpe:2.3:a:realnetworks:helix_server:12.0.0:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_server:12.0.1:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_server:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_server:13.1.1:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_server:14.0.0:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_server:14.0.1:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_mobile_server:12.0:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_mobile_server:13.1.1:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_mobile_server:14.0.0:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_mobile_server:14.0.1:*:*:*:*:*:*:*

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