Vulnerability in Apache Commons Configuration

CVE-2020-1953

Apache Commons Configuration uses a third-party library to parse YAML files which by default allows the instantiation of classes if the YAML includes special statements. Apache Commons Configuration versions 2.2, 2.3, 2.4, 2.5, 2.6 did not change the default settings of this library. So if a YAML file was loaded from an untrusted source, it could therefore load and execute code out of the control of the host application.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.063 (93.5th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.5% 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-2020-1953: fell from 0.068 to 0.063.

EPSS over last 30 days · oldest: 0.068 · newest: 0.063 · change: -0.005

Affected products

References

Frequently asked questions

What is CVE-2020-1953?
CVE-2020-1953 is a critical-severity vulnerability in Apache Commons Configuration. CVSS score: 10.0/10. Published 2020-03-13.
How severe is CVE-2020-1953?
Critical severity. CVSS v3 base score is 10.0 out of 10.