CVE-2019-4540 json
IBM Security Directory Server 6.4.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensi…
published 2020-02-04 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-14147
- cvss
- 5.9
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
IBM Security Directory Server 6.4.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 165813.
Patch / fix
Exploit prediction
0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 5.9 | CVSS:3.0/AV:N/AC:H/I:N/A:N/UI:N/C:H/S:U/PR:N/E:U/RC:C/RL:O |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.0 | 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- IBM Security Directory Server
Classification
- Weakness
-
- CWE-327 Use of a Broken or Risky Cryptographic Algorithm
References
-
ibm.com
/support/pages/node/1288660
patch, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/165813
vdb-entry
Sources
- CVE List CVE-2019-4540
- NVD CVE-2019-4540
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