CVE-2021-37199

HIGH
7.5
CVSS Score
Published: October 12, 2021 at 09:49 AM UTC
Updated: June 17, 2026 at 04:00 AM UTC
4 products affected across 1 vendorSinumerik 828D FirmwareSinumerik 808D FirmwareSINUMERIK 828D

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

A vulnerability has been identified in SINUMERIK 808D (All versions), SINUMERIK 828D (All versions < V4.95). Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial-of-service in the device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
siemens-sinumerik-808d (same device)
v < 4.95
Affected range stops below 4.95, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.95, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-122CWE-787

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