How severe is CVE-2021-4245?

CVE-2021-4245 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-4245 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4245?

CVE-2021-4245 affects Rfc6902 Project Rfc6902. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4245?

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

When was CVE-2021-4245 published?

CVE-2021-4245 was published on 2022-12-15 and last updated on 2026-06-17.

CVE-2021-4245

CVE-2021-4245 is a medium-severity vulnerability in Rfc6902 Project Rfc6902 with a CVSS 3.x base score of 5.5. 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-1321.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1321
Affected product: Rfc6902 Project Rfc6902
Published: 2022-12-15
Last modified: 2026-06-17

Description

A vulnerability classified as problematic has been found in chbrown rfc6902. This affects an unknown part of the file pointer.ts. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The exploit has been disclosed to the public and may be used. The name of the patch is c006ce9faa43d31edb34924f1df7b79c137096cf. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-215883.

Frequently asked questions

What is CVE-2021-4245?: A vulnerability classified as problematic has been found in chbrown rfc6902. This affects an unknown part of the file pointer.ts. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The exploit has been disclosed to the public and may be used. The name of the patch is c006ce9faa43d31edb34924f1df7b79c137096cf. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-215883.
How severe is CVE-2021-4245?: CVE-2021-4245 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-4245 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4245?: CVE-2021-4245 affects Rfc6902 Project Rfc6902. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4245?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4245 published?: CVE-2021-4245 was published on 2022-12-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rfc6902_project:rfc6902:*:*:*:*:*:*:*:*

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