7.5

CVE-2021-40142

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Opcfoundation ≫ Local Discover Server Version < 1.04.402.463
Siemens ≫ Simatic Net Pc Version 14 Update -
Siemens ≫ Simatic Net Pc Version 15 Update -
Siemens ≫ Simatic Net Pc Version 16 Update -
Siemens ≫ Simatic Net Pc Version 17 Update -
Siemens ≫ Simatic Wincc Version -
Siemens ≫ Simatic Wincc Runtime Version - SwEdition professional
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.56% 0.831
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
MITRE 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

https://opcfoundation.org/security-bulletins/
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-321292.pdf
Patch
Third Party Advisory
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-40142.pdf
Patch
Vendor Advisory