What is CVE-2020-10571?

CVE-2020-10571 is a critical-severity vulnerability in Psd-Tools Project, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 9.8/10. Published 2020-03-14.

How severe is CVE-2020-10571?

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

Vulnerability in Psd-Tools Project

CVE-2020-10571

An issue was discovered in psd-tools before 1.9.4. The Cython implementation of RLE decoding did not check for malicious data.

Published 2020-03-14 · last modified 2026-06-17.

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: 0.018 (77.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Psd-Tools Project

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

github.com/psd-tools/psd-tools/pull/198 (Patch, Third Party Advisory)
github.com/psd-tools/psd-tools/releases/tag/v1.9.4 (Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2020-10571?: CVE-2020-10571 is a critical-severity vulnerability in Psd-Tools Project, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 9.8/10. Published 2020-03-14.
How severe is CVE-2020-10571?: Critical severity. CVSS v3 base score is 9.8 out of 10.