How severe is CVE-2020-4378?

CVE-2020-4378 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-4378 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-2020-4378?

CVE-2020-4378 affects Ibm Spectrum Scale. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-4378?

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

When was CVE-2020-4378 published?

CVE-2020-4378 was published on 2020-05-27 and last updated on 2026-06-17.

CVE-2020-4378

CVE-2020-4378 is a medium-severity vulnerability in Ibm Spectrum Scale with a CVSS 3.x base score of 4.9. 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 4.9)
CVSS v2: 4.0
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Spectrum Scale
Published: 2020-05-27
Last modified: 2026-06-17

Description

IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 could allow a privileged authenticated user to perform unauthorized actions using a specially crated HTTP POST command. IBM X-Force ID: 179157.

Frequently asked questions

What is CVE-2020-4378?: IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 could allow a privileged authenticated user to perform unauthorized actions using a specially crated HTTP POST command. IBM X-Force ID: 179157.
How severe is CVE-2020-4378?: CVE-2020-4378 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-4378 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-2020-4378?: CVE-2020-4378 affects Ibm Spectrum Scale. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4378?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-4378 published?: CVE-2020-4378 was published on 2020-05-27 and last updated on 2026-06-17.

References

Affected products (1)

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

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