How severe is CVE-2019-4156?

CVE-2019-4156 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-4156 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-4156?

CVE-2019-4156 affects Ibm Security Access Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-4156?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-4156 published?

CVE-2019-4156 was published on 2019-06-25 and last updated on 2026-06-17.

CVE-2019-4156

CVE-2019-4156 is a medium-severity vulnerability in Ibm Security Access Manager with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-327.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Ibm Security Access Manager
Published: 2019-06-25
Last modified: 2026-06-17

Description

IBM Security Access Manager 9.0.1 through 9.0.6 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 158572.

Frequently asked questions

What is CVE-2019-4156?: IBM Security Access Manager 9.0.1 through 9.0.6 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 158572.
How severe is CVE-2019-4156?: CVE-2019-4156 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-4156 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-4156?: CVE-2019-4156 affects Ibm Security Access Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-4156?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-4156 published?: CVE-2019-4156 was published on 2019-06-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:security_access_manager:*:*:*:*:*:*:*:*

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