CVE-2021-42705

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Nov 22, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-427067.8This vulnerability could allow an attacker to disclose information and execute arbitrary code on affected installations of WebAccess/MHI DesCVE-2021-427077.8PLC Editor Versions 1.3.8 and prior is vulnerable to an out-of-bounds write while processing project files, which may allow an attacker to eCVE-2021-42716.1A vulnerability was found in panicsteve w2wiki. It has been rated as problematic. Affected by this issue is the function toHTML of the file CVE-2021-427117.8Barracuda Network Access Client before 5.2.2 creates a Temporary File in a Directory with Insecure Permissions. This file is executed with SCVE-2021-427127.8Splashtop Streamer through 3.4.8.3 creates a Temporary File in a Directory with Insecure Permissions.CVE-2021-427137.8Splashtop Remote Client (Personal Edition) through 3.4.6.1 creates a Temporary File in a Directory with Insecure Permissions.CVE-2021-427147.8Splashtop Remote Client (Business Edition) through 3.4.8.3 creates a Temporary File in a Directory with Insecure Permissions.CVE-2021-427155.5An issue was discovered in stb stb_image.h 1.33 through 2.27. The HDR loader parsed truncated end-of-file RLE scanlines as an infinite sequeCVE-2021-427167.1An issue was discovered in stb stb_image.h 2.27. The PNM loader incorrectly interpreted 16-bit PGM files as 8-bit when converting to RGBA, lCVE-2021-427177.5ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could resCVE-2021-427184.9Information Disclosure in API in Replicated Replicated Classic versions prior to 2.53.1 on all platforms allows authenticated users with AdmCVE-2021-427197.8Adobe Bridge version 11.1.1 (and earlier) is affected by an out-of-bounds read vulnerability when parsing a crafted .jpe file, which could r
CVE-2021-42705: High severity, CVSS 7.8 | Vulnix