How severe is CVE-2020-4433?

CVE-2020-4433 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-4433 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4433?

CVE-2020-4433 primarily affects Ibm Aspera Application Platform On Demand. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-4433?

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

When was CVE-2020-4433 published?

CVE-2020-4433 was published on 2020-06-10 and last updated on 2026-06-17.

CVE-2020-4433

CVE-2020-4433 is a high-severity vulnerability in Ibm Aspera Application Platform On Demand with a CVSS 3.x base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 9.3
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Ibm Aspera Application Platform On Demand
Published: 2020-06-10
Last modified: 2026-06-17

Description

Certain IBM Aspera applications are vulnerable to a stack-based buffer overflow, caused by improper bounds checking. This could allow a remote attacker with intimate knowledge of the server to execute arbitrary code on the system with the privileges of root or cause server to crash. IBM X-Force ID: 180814.

Frequently asked questions

What is CVE-2020-4433?: Certain IBM Aspera applications are vulnerable to a stack-based buffer overflow, caused by improper bounds checking. This could allow a remote attacker with intimate knowledge of the server to execute arbitrary code on the system with the privileges of root or cause server to crash. IBM X-Force ID: 180814.
How severe is CVE-2020-4433?: CVE-2020-4433 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-4433 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4433?: CVE-2020-4433 primarily affects Ibm Aspera Application Platform On Demand. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-4433?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-4433 published?: CVE-2020-4433 was published on 2020-06-10 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:a:ibm:aspera_application_platform_on_demand:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:aspera_faspex_on_demand:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:aspera_high-speed_transfer_endpoint:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:aspera_high-speed_transfer_server:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:aspera_high-speed_transfer_server_for_cloud_pak_for_integration:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:aspera_proxy_server:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:aspera_server_on_demand:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:aspera_shares_on_demand:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:aspera_streaming:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:aspera_transfer_cluster_manager:*:*:*:*:*:*:*:*

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