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CVE-2020-6656

File parsing Type Confusion Remote code execution vulerability

HIGH
7.8
CVSS Score
Published: January 7, 2021 at 05:22 PM UTC
Updated: June 17, 2026 at 03:23 AM UTC
1 product affected across 1 vendorEasySoft

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Severity
HIGH7.8
Exploit prediction
EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

EasySoft· Eaton
95%
v < 7.227.00 ≤ v < 7.20
Affected range stops below 7.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.22, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://us-cert.cisa.gov/ics/advisories/icsa-21-007-03
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/easySoft-eaton-vulnerability-advisory.pdf
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
https://www.zerodayinitiative.com/advisories/ZDI-20-1441/
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
https://www.zerodayinitiative.com/advisories/ZDI-20-1442/
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
https://www.zerodayinitiative.com/advisories/ZDI-20-1444/

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20CWE-843

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