Is CVE-2021-4245 in the CISA KEV catalog?

No. CVE-2021-4245 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-4245?

CVE-2021-4245 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-4245?

CVE-2021-4245 has an EPSS score of 1.27% (66th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-4245?

Upgrade rfc6902 to 5.0.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-4245

MEDIUM

5.5

CVSS v3

NVD

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.

CWE-74Injection CWE-1321

How to fix

Remediation Available

rfc6902NVD

Affected:< 5.0.0Fixed in:5.0.0CVE-2021-4245derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Exploit Intelligence

1.27%probability of exploitation in 30 days

66thpercentile

Moderate risk: more likely to be exploited than 66% of all known CVEs.

References

Patch2

Third-Party Advisory1

vuldb.com

Related Vulnerabilities

Other CWE-74 (Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2013-2251	Critical	9.8	100%	KEV	Fix
CVE-2023-22527	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-2725	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2022-35914	Critical	9.8	100%	KEV	-
CVE-2019-17558	High	7.5	99%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.