How severe is CVE-2020-4890?

CVE-2020-4890 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-4890 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4890?

CVE-2020-4890 affects Ibm Spectrum Scale. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-4890?

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

When was CVE-2020-4890 published?

CVE-2020-4890 was published on 2021-03-16 and last updated on 2026-06-17.

CVE-2020-4890

CVE-2020-4890 is a medium-severity vulnerability in Ibm Spectrum Scale with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
CVSS v2: 2.1
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Spectrum Scale
Published: 2021-03-16
Last modified: 2026-06-17

Description

IBM Spectrum Scale 5.0.0 through 5.0.5.5 and 5.1.0 through 5.1.0.2 could allow a local user with a valid role to the REST API to cause a denial of service due to weak or absense of rate limiting. IBM X-Force ID: 190973.

Frequently asked questions

What is CVE-2020-4890?: IBM Spectrum Scale 5.0.0 through 5.0.5.5 and 5.1.0 through 5.1.0.2 could allow a local user with a valid role to the REST API to cause a denial of service due to weak or absense of rate limiting. IBM X-Force ID: 190973.
How severe is CVE-2020-4890?: CVE-2020-4890 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-4890 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4890?: CVE-2020-4890 affects Ibm Spectrum Scale. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4890?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-4890 published?: CVE-2020-4890 was published on 2021-03-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:spectrum_scale:*:*:*:*:*:*:*:*

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