CVE-2019-4563

Name: CVE-2019-4563
Creator: NVD / NIST
Published: 2020-10-29T16:15:12.867+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2019-4563 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. IBM Security Directory Server 6.4.0 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

IBM Security Directory Server 6.4.0 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. The cookie will be sent to the insecure link and the attacker can then obtain the cookie value by snooping the traffic. IBM X-Force ID: 166624.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.92%

55.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-384

Affected Software

Vendor	Product	Versions
Ibm	Security Directory Server	6.4.0.0

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/166624VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6356607Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/166624VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6356607Patch, Vendor Advisory

Timeline

Published: Oct 29, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-4563?

How severe is CVE-2019-4563?

CVE-2019-4563 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2019-4563?

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-2019-4563?

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

Scan your code now

Source: NVD / NIST