CVE-2021-4264
CVE-2021-4264 is a medium-severity vulnerability in Linkedin Dustjs with a CVSS 3.x base score of 6.3. 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 6.3)
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-1321
- Affected product: Linkedin Dustjs
- Published:
- Last modified:
Description
A vulnerability was found in LinkedIn dustjs up to 2.x and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.0.0 is able to address this issue. The name of the patch is ddb6523832465d38c9d80189e9de60519ac307c3. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216464.
Frequently asked questions
- What is CVE-2021-4264?
- A vulnerability was found in LinkedIn dustjs up to 2.x and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.0.0 is able to address this issue. The name of the patch is ddb6523832465d38c9d80189e9de60519ac307c3. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216464.
- How severe is CVE-2021-4264?
- CVE-2021-4264 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2021-4264 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-4264?
- CVE-2021-4264 affects Linkedin Dustjs. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-4264?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-4264 published?
- CVE-2021-4264 was published on 2022-12-21 and last updated on 2026-06-17.
References
- https://github.com/linkedin/dustjs/commit/ddb6523832465d38c9d80189e9de60519ac307c3
- https://github.com/linkedin/dustjs/issues/804
- https://github.com/linkedin/dustjs/pull/805
- https://github.com/linkedin/dustjs/releases/tag/v3.0.0
- https://vuldb.com/?ctiid.216464
- https://vuldb.com/?id.216464
Affected products (1)
- cpe:2.3:a:linkedin:dustjs:*:*:*:*:*:*:*:*
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