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Fencer Vulns
high 7.8

CVE-2020-26894 json

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 vul…

published 2020-10-08 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19424

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

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".

Patch / fix

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • john-woodman.com https://john-woodman.com/posts/LiveCode-Privilege-Escalation-Vulnerability/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-427 Uncontrolled Search Path Element

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.