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01 Record

CVE-2022-27577

The vulnerability in the MSC800 in all versions before 4.15 allows for an attacker to predict the TCP initial sequence number. When the TCP sequence is predictable, an attacker can send packets that

UnratedPUBLISHEDCNA: SICK AG
CNA base scoreUnratedNo CNA CVSS vector
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02 Description

The vulnerability in the MSC800 in all versions before 4.15 allows for an attacker to predict the TCP initial sequence number. When the TCP sequence is predictable, an attacker can send packets that

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
1.43% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 72.8% of scored records. A rank, not a probability.
NVD base score
9.1 (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:H/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
2022-04-11 19:37Z4 YR AGO
Last updated
2024-08-03 05:32Z2 YR AGO
Reserved
2022-03-21
Assigning CNA
SICK AG
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-342Predictable Exact Value from Previous ValuesBase
  • CWE-330Use of Insufficiently Random ValuesClass
Data version
5.1
Document digest
9818d255b3b386659ad2a77dca6da026a2aeab5114fa1abf4d68e66e11888c33

05 Affected products

VendorProductVersionsPlatforms
n/aSICK MSC800All versions before 4.15—

06 References