CVE-2020-4259

Name: CVE-2020-4259
Creator: NVD / NIST
Published: 2020-05-14T16:15:14.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.76%

Last modified Jun 17, 2026

CVE-2020-4259 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. IBM Sterling File Gateway 2.2.0.0 through 6.0.3.1 could allow an authenticated user could manipulate cookie information and remove or add modules from the cookie to access functionality not authorized to. IBM X-Force ID: 175638.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

Description

IBM Sterling File Gateway 2.2.0.0 through 6.0.3.1 could allow an authenticated user could manipulate cookie information and remove or add modules from the cookie to access functionality not authorized to. IBM X-Force ID: 175638.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.76%

50.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-276

Affected Software

Vendor	Product	Versions
Ibm	Sterling File Gateway	>= 2.2.0.0, <= 2.2.6.5_1
Ibm	Sterling File Gateway	>= 6.0.0.0, <= 6.0.3.1

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/175638VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6208038Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/175638VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6208038Vendor Advisory

Timeline

Published: May 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4259?

How severe is CVE-2020-4259?

CVE-2020-4259 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4259?

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-2020-4259?

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

Scan your code now

Source: NVD / NIST