CVE-2020-6656

Name: CVE-2020-6656
Creator: NVD / NIST
Published: 2021-01-07T18:15:14.027+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 2.71%

Last modified Jun 17, 2026

CVE-2020-6656 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Eaton's easySoft software v7.xx prior to v7.22 are susceptible to file parsing type confusion remote code execution vulnerability. A malicious entity can execute a malicious code or make the application crash by tricking user upload a malformed .E70 file in the application. EPSS estimates a 2.71% chance of exploitation in the next 30 days.

Description

Eaton's easySoft software v7.xx prior to v7.22 are susceptible to file parsing type confusion remote code execution vulnerability. A malicious entity can execute a malicious code or make the application crash by tricking user upload a malformed .E70 file in the application. The vulnerability arises due to improper validation of user data supplied through E70 file which is causing Type Confusion.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

2.71%

84.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Eaton	Easysoft	>= 7.00, < 7.20

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-007-03Third Party Advisory, US Government Resource
https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/easySoft-eaton-vulnerability-advisory.pdfVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1441/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-1442/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-1444/Third Party Advisory, VDB Entry
https://us-cert.cisa.gov/ics/advisories/icsa-21-007-03Third Party Advisory, US Government Resource
https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/easySoft-eaton-vulnerability-advisory.pdfVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1441/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-1442/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-1444/Third Party Advisory, VDB Entry

Timeline

Published: Jan 7, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-6656?

How severe is CVE-2020-6656?

CVE-2020-6656 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 2.71% probability of exploitation in the next 30 days.

How do I fix CVE-2020-6656?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-6656?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST