How severe is CVE-2020-4559?

CVE-2020-4559 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-4559 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4559?

CVE-2020-4559 affects Ibm Spectrum Protect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-4559?

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

When was CVE-2020-4559 published?

CVE-2020-4559 was published on 2020-08-28 and last updated on 2026-06-17.

CVE-2020-4559

CVE-2020-4559 is a high-severity vulnerability in Ibm Spectrum Protect with a CVSS 3.x base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Ibm Spectrum Protect
Published: 2020-08-28
Last modified: 2026-06-17

Description

IBM Spectrum Protect 7.1 and 8.1 could allow an attacker to cause a denial of service due ti improper validation of user-supplied input. IBM X-Force ID: 183613.

Frequently asked questions

What is CVE-2020-4559?: IBM Spectrum Protect 7.1 and 8.1 could allow an attacker to cause a denial of service due ti improper validation of user-supplied input. IBM X-Force ID: 183613.
How severe is CVE-2020-4559?: CVE-2020-4559 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-4559 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4559?: CVE-2020-4559 affects Ibm Spectrum Protect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4559?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-4559 published?: CVE-2020-4559 was published on 2020-08-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:spectrum_protect:*:*:*:*:*:*:*:*

More vulnerabilities in Ibm Spectrum Protect

CVE-2020-4415 — Critical (CVSS 9.8): IBM Spectrum Protect 7.1 and 8.1 server is vulnerable to a stack-based buffer overflow, caused by improper bounds…
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CVE-2020-4212 — Critical (CVSS 9.8): IBM Spectrum Protect Plus 10.1.0 and 10.1.5 could allow a remote attacker to execute arbitrary code on the system. By…
CVE-2020-4211 — Critical (CVSS 9.8): IBM Spectrum Protect Plus 10.1.0 and 10.1.5 could allow a remote attacker to execute arbitrary code on the system. By…
CVE-2020-4210 — Critical (CVSS 9.8): IBM Spectrum Protect Plus 10.1.0 and 10.1.5 could allow a remote attacker to execute arbitrary code on the system. By…

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