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01 Record

CVE-2021-40364

A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3 UC04), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier

MediumPUBLISHEDCNA: siemens
CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C

02 Description

A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3 UC04), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.24% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 14.9% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-11-09 11:32Z4 YR AGO
Last updated
2024-08-04 02:44Z2 YR AGO
Reserved
2021-09-01
Assigning CNA
siemens
Record state
PUBLISHED
Severity
Medium (CVSS 5.5)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Weaknesses
  • CWE-532Insertion of Sensitive Information into Log FileBase
Data version
5.1
Document digest
b0a443071aa52e36dfb2d7fb4597659cdebe146c8493a75618fe5b3bb1a220a6

05 Affected products

VendorProductVersionsPlatforms
SiemensSIMATIC PCS 7 V8.2All versions—
SiemensSIMATIC PCS 7 V9.0All versions < V9.0 SP3 UC04—
SiemensSIMATIC PCS 7 V9.1All versions < V9.1 SP1—
SiemensSIMATIC WinCC V15 and earlierAll versions < V15 SP1 Update 7—
SiemensSIMATIC WinCC V16All versions < V16 Update 5—
SiemensSIMATIC WinCC V17All versions < V17 Update 2—
SiemensSIMATIC WinCC V7.4All versions < V7.4 SP1 Update 19—
SiemensSIMATIC WinCC V7.5All versions < V7.5 SP2 Update 5—

06 References