What is CVE-2021-25953?

CVE-2021-25953 is a critical-severity vulnerability in Putil-Merge Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2021-07-14.

How severe is CVE-2021-25953?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Prototype Pollution in Putil-Merge Project

CVE-2021-25953

Prototype pollution vulnerability in 'putil-merge' versions1.0.0 through 3.6.6 allows attacker to cause a denial of service and may lead to remote code execution.

Vulnerability class: Prototype Pollution

EPSS: 0.030 (85.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Putil-merge_project Putil-merge
N/a Putil-merge — versions 3.6.6, 3.6.5, 3.6.4, 3.6.3, 3.6.2, 3.6.1, 3.6.0, 3.5.2, 3.5.1, 3.5.0, 3.4.2, 3.4.1, 3.3.0, 3.2.0, 3.1.4, 3.1.3, 3.1.2, 3.1.1, 3.1.0, 3.0.0, 2.2.0, 2.1.0, 2.0.2, 2.0.1, 2.0.0, 1.2.0, 1.1.5, 1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1.0, 1.0.2, 1.0.1, 1.0.0

Weakness classification (CWE)

CWE-1321 — Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution)

References

vulnerabilitylab@mend.io (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-25953?: CVE-2021-25953 is a critical-severity vulnerability in Putil-Merge Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2021-07-14.
How severe is CVE-2021-25953?: Critical severity. CVSS v3 base score is 9.8 out of 10.