How severe is CVE-2020-24164?

CVE-2020-24164 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-24164 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24164?

CVE-2020-24164 affects Taoensso Nippy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-24164?

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-2020-24164 published?

CVE-2020-24164 was published on 2020-09-11 and last updated on 2026-06-17.

CVE-2020-24164

CVE-2020-24164 is a high-severity vulnerability in Taoensso Nippy with a CVSS 3.x base score of 7.8. 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-502.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Taoensso Nippy
Published: 2020-09-11
Last modified: 2026-06-17

Description

A deserialization flaw is present in Taoensso Nippy before 2.14.2. In some circumstances, it is possible for an attacker to create a malicious payload that, when deserialized, will allow arbitrary code to be executed. This occurs because there is automatic use of the Java Serializable interface.

Frequently asked questions

What is CVE-2020-24164?: A deserialization flaw is present in Taoensso Nippy before 2.14.2. In some circumstances, it is possible for an attacker to create a malicious payload that, when deserialized, will allow arbitrary code to be executed. This occurs because there is automatic use of the Java Serializable interface.
How severe is CVE-2020-24164?: CVE-2020-24164 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-24164 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24164?: CVE-2020-24164 affects Taoensso Nippy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-24164?: 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-2020-24164 published?: CVE-2020-24164 was published on 2020-09-11 and last updated on 2026-06-17.

References

https://github.com/ptaoussanis/nippy/issues/130

Affected products (1)

cpe:2.3:a:taoensso:nippy:*:*:*:*:*:*:*:*

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