CVE-2021-40142
HIGHOPC Foundation Local Discovery Server < 1.04.402.463 - Denial of Service via Crafted Messages
Title source: llmDescription
In OPC Foundation Local Discovery Server (LDS) before 1.04.402.463, remote attackers can cause a denial of service (DoS) by sending carefully crafted messages that lead to Access of a Memory Location After the End of a Buffer.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_misc
https://opcfoundation.org/security-bulletins/
Patch, Vendor Advisory x_refsource_misc
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-40142.pdf
Patch, Third Party Advisory x_refsource_confirm
https://cert-portal.siemens.com/productcert/pdf/ssa-321292.pdf
Scores
CVSS v3
7.5
EPSS
0.0050
EPSS Percentile
66.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-119
Status
published
Products (11)
opcfoundation/local_discover_server
< 1.04.402.463
siemens/simatic_net_pc
14
siemens/simatic_net_pc
15
siemens/simatic_net_pc
16
siemens/simatic_net_pc
17
siemens/simatic_process_historian_opc_ua_server_firmware
2022
siemens/simatic_process_historian_opc_ua_server_firmware
< 2022
siemens/simatic_wincc
siemens/simatic_wincc_runtime
siemens/simatic_wincc_unified_scada_runtime
... and 1 more
Published
Aug 27, 2021
Tracked Since
Feb 18, 2026