How severe is CVE-2006-6026?

CVE-2006-6026 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2006-6026 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6026?

CVE-2006-6026 primarily affects Realnetworks Helix Dna Server. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-6026?

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-2006-6026 published?

CVE-2006-6026 was published on 2006-11-21 and last updated on 2026-06-16.

CVE-2006-6026

CVE-2006-6026 is a critical-severity vulnerability in Realnetworks Helix Dna Server with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 11% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 11% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Realnetworks Helix Dna Server
Published: 2006-11-21
Last modified: 2026-06-16

Description

Heap-based buffer overflow in Real Networks Helix Server and Helix Mobile Server before 11.1.3, and Helix DNA Server 11.0 and 11.1, allows remote attackers to cause a denial of service (application crash) or execute arbitrary code via a DESCRIBE request that contains an invalid LoadTestPassword field.

Frequently asked questions

What is CVE-2006-6026?: Heap-based buffer overflow in Real Networks Helix Server and Helix Mobile Server before 11.1.3, and Helix DNA Server 11.0 and 11.1, allows remote attackers to cause a denial of service (application crash) or execute arbitrary code via a DESCRIBE request that contains an invalid LoadTestPassword field.
How severe is CVE-2006-6026?: CVE-2006-6026 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2006-6026 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6026?: CVE-2006-6026 primarily affects Realnetworks Helix Dna Server. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-6026?: 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-2006-6026 published?: CVE-2006-6026 was published on 2006-11-21 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:realnetworks:helix_dna_server:11.0:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_dna_server:11.1:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_mobile_server:*:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_server:*:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_server:11.0:*:*:*:*:*:*:*
cpe:2.3:a:realnetworks:helix_server:11.1:*:*:*:*:*:*:*

More vulnerabilities in Realnetworks Helix Dna Server

CVE-2007-4561 — Critical (CVSS 10.0): Heap-based buffer overflow in the RTSP service in Helix DNA Server before 11.1.4 allows remote attackers to execute…
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