What is CVE-2020-4588?

CVE-2020-4588 is a high-severity vulnerability in IBM I2 Ibase, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.8/10. Published 2020-10-30.

How severe is CVE-2020-4588?

High severity. CVSS v3 base score is 7.8 out of 10.

Arbitrary file upload in IBM I2 Ibase

CVE-2020-4588

IBM i2 iBase 8.9.13 could allow an attacker to upload arbitrary executable files which, when executed by an unsuspecting victim could result in code execution. IBM X-Force ID: 184579.

Vulnerability class: Unrestricted File Upload

Published 2020-10-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (70.9th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

www.ibm.com/support/pages/node/6357037 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/184579 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2020-4588?: CVE-2020-4588 is a high-severity vulnerability in IBM I2 Ibase, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.8/10. Published 2020-10-30.
How severe is CVE-2020-4588?: High severity. CVSS v3 base score is 7.8 out of 10.