How severe is CVE-2020-4567?

CVE-2020-4567 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-4567 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4567?

CVE-2020-4567 primarily affects Ibm Security Key Lifecycle Manager. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-4567?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-4567 published?

CVE-2020-4567 was published on 2020-07-29 and last updated on 2026-06-17.

CVE-2020-4567

CVE-2020-4567 is a critical-severity vulnerability in Ibm Security Key Lifecycle Manager with a CVSS 3.x base score of 9.8. 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-307.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-307
Affected product: Ibm Security Key Lifecycle Manager
Published: 2020-07-29
Last modified: 2026-06-17

Description

IBM Tivoli Key Lifecycle Manager 3.0.1 and 4.0 uses an inadequate account lockout setting that could allow a remote attacker to brute force account credentials. IBM X-Force ID: 184156.

Frequently asked questions

What is CVE-2020-4567?: IBM Tivoli Key Lifecycle Manager 3.0.1 and 4.0 uses an inadequate account lockout setting that could allow a remote attacker to brute force account credentials. IBM X-Force ID: 184156.
How severe is CVE-2020-4567?: CVE-2020-4567 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-4567 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4567?: CVE-2020-4567 primarily affects Ibm Security Key Lifecycle Manager. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-4567?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-4567 published?: CVE-2020-4567 was published on 2020-07-29 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:ibm:security_key_lifecycle_manager:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:security_key_lifecycle_manager:4.0:*:*:*:*:*:*:*

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