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Fencer Vulns
high 7.8

CVE-2020-27281 json

A stack-based buffer overflow may exist in Delta Electronics CNCSoft ScreenEditor versions 1.01.26 and prior when processing specially craf…

published 2021-01-11 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19794

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

A stack-based buffer overflow may exist in Delta Electronics CNCSoft ScreenEditor versions 1.01.26 and prior when processing specially crafted project files, which may allow an attacker to execute arbitrary code.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-005-06 updated cvss 7.8

Delta Electronics CNCSoft ScreenEditor

  • Delta Electronics CNCSoft ScreenEditor < 1.01.26
    affected: mitigation “Delta Electronics has released an updated version of CNCSoft ScreenEditor, and recommends users install update v1.01.28 on all affected systems.” downloadcenter.deltaww.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

2.10% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • n/a Delta Electronics CNCSoft ScreenEditor

Classification

Weakness

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.