CVE-2020-4638

Name: CVE-2020-4638
Creator: NVD / NIST
Published: 2020-09-03T14:15:10.883+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.71%

Last modified Jun 17, 2026

CVE-2020-4638 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. IBM API Connect's API Manager 2018.4.1.0 through 2018.4.1.12 is vulnerable to privilege escalation. An invitee to an API Provider organization can escalate privileges by manipulating the invitation link. EPSS estimates a 1.71% chance of exploitation in the next 30 days.

Description

IBM API Connect's API Manager 2018.4.1.0 through 2018.4.1.12 is vulnerable to privilege escalation. An invitee to an API Provider organization can escalate privileges by manipulating the invitation link. IBM X-Force ID: 185508.

Metrics

CVSS 3.1

7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.71%

74.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Ibm	Api Connect	>= 2018.4.1.0, <= 2018.4.1.12

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/185508VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6324751Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/185508VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6324751Vendor Advisory

Timeline

Published: Sep 3, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4638?

How severe is CVE-2020-4638?

CVE-2020-4638 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.71% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4638?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-4638?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST