IBM Security Directory Server 6.4.0 does not properly neutralize special elements that are used in XML, allowing attackers to modify the sy…

published 2019-10-02 7y ago modified 2026-06-17 4mo ago also EUVD-2019-14146

cvss: 7.1; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits: 0; none known

IBM Security Directory Server 6.4.0 does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system. IBM X-Force ID: 165812.

Patch / fix

links 1

ibm.com/support/pages/node/1077045 advisory

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Exploit prediction

1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.1	CVSS:3.0/PR:L/A:H/I:L/AV:N/S:U/C:N/AC:L/UI:N/E:U/RC:C/RL:O
NVD	3.1	7.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CNA	3.0	7.1	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
NVD	2.0	5.5	AV:N/AC:L/Au:S/C:N/I:P/A:P

Affected products

IBM Security Directory Server

Classification

Weakness

CWE-91 XML Injection

References

ibm.com /support/pages/node/1077045
patch, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/165812
vdb-entry, vendor-advisory

Sources

CVE List CVE-2019-4539
NVD CVE-2019-4539

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