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.

Data is provided by the National Vulnerability Database (NVD)
Opcfoundation ≫ Local Discover Server Version < 1.04.402.463
Siemens ≫ Simatic Net Pc Version14 Update-
Siemens ≫ Simatic Net Pc Version15 Update-
Siemens ≫ Simatic Net Pc Version16 Update-
Siemens ≫ Simatic Net Pc Version17 Update-
Siemens ≫ Simatic Wincc Version-
Siemens ≫ Simatic Wincc Runtime Version- SwEditionprofessional
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.68% 0.707
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 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
nvd@nist.gov 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
cve@mitre.org 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.