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

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.030 (87.1th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-25953: held from 0.030 to 0.030.

EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000

Affected products

  • Putil-Merge Project
  • 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)

References

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.