CVE-2019-4539 json
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 7 y ago modified 2026-06-17 4 mo 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
Summary
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
- ibm.com/support/pages/node/1077045 advisory
Exploit prediction
1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
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
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.