CVE-2019-4256 json
IBM API Connect 5.0.0.0 through 5.0.8.6 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly s…
published 7y ago modified 4mo ago also EUVD-2019-13863
- cvss
- 5.9
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
IBM API Connect 5.0.0.0 through 5.0.8.6 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 159944.
Patch / fix
Is CVE-2019-4256 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 5.9 | CVSS:3.0/UI:N/S:U/C:H/A:N/I:N/AC:H/AV:N/PR:N/RL:O/E:U/RC:C |
| 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 API Connect
Classification
- Weakness
-
- CWE-326 Inadequate Encryption Strength
References
-
ibm.com
/support/docview.wss?uid=ibm10882968
patch, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/159944
vdb-entry, vendor-advisory
-
securityfocus.com
/bid/108530
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2019-4256
- NVD CVE-2019-4256
Fencer Intel 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.