7.8

CVE-2020-7586

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). A buffer overflow vulnerability could allow a local attacker to cause a Denial-of-Service situation. The security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information.

Data is provided by the National Vulnerability Database (NVD)
Siemens ≫ Simatic Step 7 Version < 5.6
Siemens ≫ Simatic Step 7 Version5.6 Update-
Siemens ≫ Simatic Step 7 Version5.6 Updatesp1
Siemens ≫ Simatic Step 7 Version5.6 Updatesp2
Siemens ≫ Simatic Step 7 Version5.6 Updatesp2_hotfix1
Siemens ≫ Sinamics Starter Version < 5.4
Siemens ≫ Sinamics Starter Version5.4 Update-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.15% 0.365
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 4.6 3.9 6.4
AV:L/AC:L/Au:N/C:P/I:P/A:P
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://www.us-cert.gov/ics/advisories/icsa-20-161-05
Third Party Advisory
US Government Resource