CVE-2020-26894

Name: CVE-2020-26894
Creator: NVD / NIST
Published: 2020-10-08T21:15:10.37+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2020-26894 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. LiveCode v9.6.1 on Windows allows local, low-privileged users to gain privileges by creating a malicious "cmd.exe" in the folder of the vulnerable LiveCode application. If the application is using LiveCode's "shell()" function, it will attempt to search for "cmd.exe" in the folder of the current application and run the malicious "cmd.exe".. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

LiveCode v9.6.1 on Windows allows local, low-privileged users to gain privileges by creating a malicious "cmd.exe" in the folder of the vulnerable LiveCode application. If the application is using LiveCode's "shell()" function, it will attempt to search for "cmd.exe" in the folder of the current application and run the malicious "cmd.exe".

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.43%

34.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-427

Affected Software

Vendor	Product	Versions
Faulknermedia	Wildlife Issues In The New Millennium	18.0.160

References

https://github.com/livecode/livecode/pull/7454Vendor Advisory
https://john-woodman.com/posts/LiveCode-Privilege-Escalation-Vulnerability/Exploit, Third Party Advisory
https://quality.livecode.com/show_bug.cgi?id=22942Third Party Advisory
https://github.com/livecode/livecode/pull/7454Vendor Advisory
https://john-woodman.com/posts/LiveCode-Privilege-Escalation-Vulnerability/Exploit, Third Party Advisory
https://quality.livecode.com/show_bug.cgi?id=22942Third Party Advisory

Timeline

Published: Oct 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-26894?

How severe is CVE-2020-26894?

CVE-2020-26894 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2020-26894?

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-2020-26894?

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

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Source: NVD / NIST