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Fencer Vulns
high 7.5

CVE-2020-4435 json

Certain IBM Aspera applications are vulnerable to arbitrary memory corruption based on the product configuration, which could allow an atta…

published 2020-06-10 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-25682

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

Certain IBM Aspera applications are vulnerable to arbitrary memory corruption based on the product configuration, which could allow an attacker with intimate knowledge of the system to execute arbitrary code or perform a denial-of-service (DoS) through the http fallback service. IBM X-Force ID: 180901.

Exploit prediction

1.62% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/I:H/AC:H/UI:N/A:H/AV:N/C:H/S:U/PR:L/RL:O/E:U/RC:C
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P

Affected products

  • IBM Aspera Transfer Cluster Manager
  • IBM Aspera High-Speed Transfer Server
  • IBM Aspera Shares On Demand
  • IBM Aspera Application Platform On Demand
  • IBM Aspera Proxy Server
  • IBM Aspera Faspex On Demand
  • IBM Aspera Server On Demand
  • IBM Aspera High-Speed Transfer Server for Cloud Pak for Integration (CP4I)
  • IBM Aspera Streaming
  • IBM Aspera High-Speed Transfer Endpoint

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.