How severe is CVE-2010-4235?

CVE-2010-4235 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2010-4235 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4235?

CVE-2010-4235 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-2010-4235?

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-2010-4235 published?

CVE-2010-4235 was published on 2011-04-04 and last updated on 2026-06-16.

CVE-2010-4235

CVE-2010-4235 is a critical-severity vulnerability in Realnetworks Helix Server with a CVSS 2.0 base score of 10.0. 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-134.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-134
Affected product: Realnetworks Helix Server
Published: 2011-04-04
Last modified: 2026-06-16

Description

Format string vulnerability 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 vectors related to the x-wap-profile HTTP header.

Frequently asked questions

What is CVE-2010-4235?: Format string vulnerability 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 vectors related to the x-wap-profile HTTP header.
How severe is CVE-2010-4235?: CVE-2010-4235 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2010-4235 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4235?: CVE-2010-4235 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-2010-4235?: 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-2010-4235 published?: CVE-2010-4235 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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