How severe is CVE-2020-24554?

CVE-2020-24554 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-2020-24554 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24554?

CVE-2020-24554 affects Liferay Liferay Portal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-24554?

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-2020-24554 published?

CVE-2020-24554 was published on 2020-09-01 and last updated on 2026-06-17.

CVE-2020-24554

CVE-2020-24554 is a high-severity vulnerability in Liferay Liferay Portal 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-601.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Liferay Liferay Portal
Published: 2020-09-01
Last modified: 2026-06-17

Description

The redirect module in Liferay Portal before 7.3.3 does not limit the number of URLs resulting in a 404 error that is recorded, which allows remote attackers to perform a denial of service attack by making repeated requests for pages that do not exist.

Frequently asked questions

What is CVE-2020-24554?: The redirect module in Liferay Portal before 7.3.3 does not limit the number of URLs resulting in a 404 error that is recorded, which allows remote attackers to perform a denial of service attack by making repeated requests for pages that do not exist.
How severe is CVE-2020-24554?: CVE-2020-24554 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-2020-24554 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24554?: CVE-2020-24554 affects Liferay Liferay Portal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-24554?: 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-2020-24554 published?: CVE-2020-24554 was published on 2020-09-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:liferay:liferay_portal:*:*:*:*:*:*:*:*

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