How severe is CVE-2021-23452?

CVE-2021-23452 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2021-23452 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-23452?

CVE-2021-23452 affects Binaryops X-assign. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-23452?

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-2021-23452 published?

CVE-2021-23452 was published on 2021-10-20 and last updated on 2026-06-17.

CVE-2021-23452

CVE-2021-23452 is a high-severity vulnerability in Binaryops X-assign with a CVSS 3.x base score of 8.6. 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-1321.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 7.5
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1321
Affected product: Binaryops X-assign
Published: 2021-10-20
Last modified: 2026-06-17

Description

This affects all versions of package x-assign. The global proto object can be polluted using the __proto__ object.

Frequently asked questions

What is CVE-2021-23452?: This affects all versions of package x-assign. The global proto object can be polluted using the __proto__ object.
How severe is CVE-2021-23452?: CVE-2021-23452 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2021-23452 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23452?: CVE-2021-23452 affects Binaryops X-assign. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-23452?: 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-2021-23452 published?: CVE-2021-23452 was published on 2021-10-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:binaryops:x-assign:*:*:*:*:*:node.js:*:*

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