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Vulnerability record · CVE-2019-4538 · published 2 October 2019

CVE-2019-4538: Ibm security directory server open redirect vulnerability

Ibm · Security Directory Server

IBM Security Directory Server 6.4.0 could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim. IBM X-Force ID: 165660.

8.2 CVSS 3.1 High EPSS 1.3% · top 31.0% CWE-601 · Open redirect
8.2CVSS 3.1 base score, v2 5.8
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

IBM Security Directory Server 6.4.0 could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim. IBM X-Force ID: 165660.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://exchange.xforce.ibmcloud.com/vulnerabilities/165660 VDB EntryVendor Advisory
https://www.ibm.com/support/pages/node/1077045 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/165660 VDB EntryVendor Advisory
https://www.ibm.com/support/pages/node/1077045 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.1CVE-2022-32755Ibm security directory server xml injection vulnerabilityIBM Security Directory Server 6.4.0 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could …EPSS 0.71%9.1CVE-2022-33164Ibm security directory server path traversal vulnerabilityIBM Security Directory Server 7.2.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted U…EPSS 1.5%7.5CVE-2022-32759Ibm security directory integrator insufficient session expiration vulnerabilityIBM Security Directory Integrator 7.2.0 and IBM Security Verify Directory Integrator 10.0.0 uses insufficient session expiration which could allow an…EPSS 0.38%7.5CVE-2019-4540Ibm security directory server broken cryptographic algorithm vulnerabilityIBM Security Directory Server 6.4.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive infor…EPSS 0.79%7.5CVE-2019-4520Ibm security directory server improper restriction of authentication attempts vulnerabilityIBM Security Directory Server 6.4.0 uses an inadequate account lockout setting that could allow a remote attacker to brute force account credentials.…EPSS 2.2%7.5CVE-2015-1977Ibm tivoli directory server information exposure vulnerabilityDirectory traversal vulnerability in the Web Administration tool in IBM Tivoli Directory Server (ITDS) before 6.1.0.74-ISS-ISDS-IF0074, 6.2.x before …EPSS 1.7%7.2CVE-2019-4541Ibm security directory server vulnerabilityIBM Security Directory Server 6.4.0 uses incomplete blacklisting for input validation which allows attackers to bypass application controls resulting…EPSS 1.3%7.1CVE-2019-4539Ibm security directory server xml injection vulnerabilityIBM Security Directory Server 6.4.0 does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, cont…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2019-4538), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.