No exploitation reported

CVE-2020-4433

No exploitation reported by the sources we read.

Published2020-06-10
WeaknessCWE-20 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2020-06-1013:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-4433?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-4433?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Ibm aspera application platform on demand

Branch	Affected	Fixed in	Source
3.7	≤ 3.7.4	no fix published	NVD

Ibm aspera faspex on demand

Branch	Affected	Fixed in	Source
3.7	≤ 3.7.4	no fix published	NVD

Ibm aspera high-speed transfer endpoint

Branch	Affected	Fixed in	Source
3.9	≤ 3.9.3	no fix published	NVD

7 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

exchange.xforce.ibmcloud.comVendor Advisory
www.ibm.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.5read 2026-10-23
CNACVSS 3.07.5read 2026-10-23
NVDCVSS 2.09.3read 2026-10-23
NVDweakness (CWE)CWE-20, CWE-787read 2026-10-23
FIRST EPSSEPSS score5.1 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2020-06-10
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-4433?

Is CVE-2020-4433 actively exploited?

Active exploitation of CVE-2020-4433 has not been confirmed. Its EPSS score was 5.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-4433?

CVE-2020-4433 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

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