CVE-2019-4256

Name: CVE-2019-4256
Creator: NVD / NIST
Published: 2019-05-29T15:29:00.707+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.32%

Last modified Jun 17, 2026

CVE-2019-4256 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. IBM API Connect 5.0.0.0 through 5.0.8.6 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 159944.. EPSS estimates a 1.32% chance of exploitation in the next 30 days.

Description

IBM API Connect 5.0.0.0 through 5.0.8.6 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 159944.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.32%

67.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-326

Affected Software

Vendor	Product	Versions
Ibm	Api Connect	>= 5.0.0.0, <= 5.0.8.6

References

http://www.securityfocus.com/bid/108530Third Party Advisory, VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/159944VDB Entry, Vendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10882968Patch, Vendor Advisory
http://www.securityfocus.com/bid/108530Third Party Advisory, VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/159944VDB Entry, Vendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10882968Patch, Vendor Advisory

Timeline

Published: May 29, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-4256?

IBM API Connect 5.0.0.0 through 5.0.8.6 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 159944.

How severe is CVE-2019-4256?

CVE-2019-4256 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.32% probability of exploitation in the next 30 days.

How do I fix CVE-2019-4256?

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-2019-4256?

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

Scan your code now

Source: NVD / NIST