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7.5

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 10...

CVE-2021-37199 · published 5 years ago
Summary

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.

What to do
  • Update siemens sinumerik_828d_firmware to version 4.95 or later.
Affected software
VendorProductAffected versions
siemens sinumerik_808d_firmware All versions
cpe:2.3:o:siemens:sinumerik_808d_firmware:*:*:*:*:*:*:*:*
siemens sinumerik_828d_firmware < 4.95
cpe:2.3:o:siemens:sinumerik_828d_firmware:*:*:*:*:*:*:*:*
Original advisory text
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 10...
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.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
7.5 High
Exploitation
1% chance of attack within 30 days
Type
CWE-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
Timeline
Published12 Oct 2021
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2021-37199 · NVD
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