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01 Record

CVE-2020-25241

A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). The underlying TCP stack of the affected products does not correctly validate the sequence number for incoming TCP

UnratedPUBLISHEDCNA: siemens
CNA base scoreUnratedNo CNA CVSS vector

02 Description

A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). The underlying TCP stack of the affected products does not correctly validate the sequence number for incoming TCP

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
1.06% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 64.7% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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
2021-03-15 17:03Z5 YR AGO
Last updated
2024-08-04 15:33Z2 YR AGO
Reserved
2020-09-10
Assigning CNA
siemens
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-1285Improper Validation of Specified Index, Position, or Offset in InputBase
  • CWE-129Improper Validation of Array IndexVariant
Data version
5.1
Document digest
e64e20f573cc63a9eac789b22ab2abaab97b17cbb5ed0fee013ff5583d125e96

05 Affected products

VendorProductVersionsPlatforms
SiemensSIMATIC MV400 familyAll Versions < V7.0.6—

06 References