CVE-2021-42705

7.8 highEPSS 1.0%

High (7.8) in we-con plc editor. EPSS 1.0% chance of exploitation in the next 30 days.

PLC Editor Versions 1.3.8 and prior is vulnerable to a stack-based buffer overflow while processing project files, which may allow an attacker to execute arbitrary code.

Severity

CVSS 3.1

7.8 high

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

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)
CWE: CWE-121
Published: 2021-11-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

we-con:plc_editor

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-315-01
https://us-cert.cisa.gov/ics/advisories/icsa-21-315-01

Check your stack JSON