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Fencer Intel
high 7.5

CVE-2020-4434 json

Certain IBM Aspera applications are vulnerable to buffer overflow based on the product configuration and valid authentication, which could…

published 6y ago modified 4mo ago also EUVD-2020-25681

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

Certain IBM Aspera applications are vulnerable to buffer overflow based on the product configuration and valid authentication, 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: 180900.

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Exploit prediction

2.60% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/AC:H/I: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 Shares On Demand
  • IBM Aspera Application Platform On Demand
  • IBM Aspera Transfer Cluster Manager
  • IBM Aspera High-Speed Transfer Server
  • IBM Aspera Proxy Server
  • IBM Aspera Faspex On Demand
  • IBM Aspera High-Speed Transfer Server for Cloud Pak for Integration (CP4I)
  • IBM Aspera High-Speed Transfer Endpoint
  • IBM Aspera Streaming
  • IBM Aspera Server On Demand

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Intel 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.