CVE-2021-40368

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416-2 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416F-2 DP V7 (All versions), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions < V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions < V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.

This could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-119

Affected software

No affected versions have been published.

Timeline

Published
Apr 12, 2022
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-403696.1A carefully crafted plugin link invocation could trigger an XSS vulnerability on Apache JSPWiki, related to the Denounce plugin, which couldCVE-2021-40374.4A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that allows local users to create files foCVE-2021-403719.8Gridpro Request Management for Windows Azure Pack before 2.0.7912 allows Directory Traversal for remote code execution, as demonstrated by .CVE-2021-403739.8playSMS before 1.4.5 allows Arbitrary Code Execution by entering PHP code at the #tabs-information-page of core_main_config, and then executCVE-2021-403745.4A stored cross-site scripting (XSS) vulnerability was identified in Apperta Foundation OpenEyes 3.5.1. Updating a patient's details allows rCVE-2021-403756.5Apperta Foundation OpenEyes 3.5.1 allows remote attackers to view the sensitive information of patients without having the intended level ofCVE-2021-403767.8otris Update Manager 1.2.1.0 allows local users to achieve SYSTEM access via unauthenticated calls to exposed interfaces over a .NET named pCVE-2021-403775.4SmarterTools SmarterMail 16.x before build 7866 has stored XSS. The application fails to sanitize email content, thus allowing one to injectCVE-2021-403788.1An issue was discovered on Compro IP70 2.08_7130218, IP570 2.08_7130520, IP60, and TN540 devices. /cgi-bin/support/killps.cgi deletes all daCVE-2021-403797.5An issue was discovered on Compro IP70 2.08_7130218, IP570 2.08_7130520, IP60, and TN540 devices. rstp://.../medias2 does not require authorCVE-2021-40384.8Cross Site Scripting (XSS) vulnerability in McAfee Network Security Manager (NSM) prior to 10.1 Minor 7 allows a remote authenticated adminiCVE-2021-403807.5An issue was discovered on Compro IP70 2.08_7130218, IP570 2.08_7130520, IP60, and TN540 devices. cameralist.cgi and setcamera.cgi disclose