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HIGH · 7.5

CVE-2021-20986

A Denial of Service vulnerability was found in Hilscher PROFINET IO Device V3 in versions prior to V3.14.0.7. This may lead to unexpected loss of cyclic communication or interruption of acyclic commun...

Vulnerability Description

A Denial of Service vulnerability was found in Hilscher PROFINET IO Device V3 in versions prior to V3.14.0.7. This may lead to unexpected loss of cyclic communication or interruption of acyclic communication.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
HilscherProfinet Io Device Firmware>= 3.0, < 3.14.0.7
HilscherProfinet Io Device-
Pepperl-FuchsPgv100-F200A-B17-V1D Firmware<= 2.0.0
Pepperl-FuchsPgv100-F200A-B17-V1D-
Pepperl-FuchsPgv150I-F200A-B17-V1D Firmware<= 2.0.0
Pepperl-FuchsPgv150I-F200A-B17-V1D-
Pepperl-FuchsPgv100-F200-B17-V1D-7477 Firmware<= 2.0.0
Pepperl-FuchsPgv100-F200-B17-V1D-7477-
Pepperl-FuchsPxv100-F200-B17-V1D Firmware<= 4.2.0
Pepperl-FuchsPxv100-F200-B17-V1D-
Pepperl-FuchsPxv100-F200-B17-V1D-3636 Firmware<= 4.2.0
Pepperl-FuchsPxv100-F200-B17-V1D-3636-
Pepperl-FuchsPcv80-F200-B17-V1D Firmware<= 3.2.3
Pepperl-FuchsPcv80-F200-B17-V1D-
Pepperl-FuchsPcv100-F200-B17-V1D Firmware<= 3.2.3
Pepperl-FuchsPcv100-F200-B17-V1D-
Pepperl-FuchsPcv50-F200-B17-V1D Firmware<= 3.2.3
Pepperl-FuchsPcv50-F200-B17-V1D-
Pepperl-FuchsPcv100-F200-B17-V1D-6011-6997 Firmware<= 3.2.3
Pepperl-FuchsPcv100-F200-B17-V1D-6011-6997-

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2021-20986?

CVE-2021-20986 is a vulnerability with a CVSS score of 7.5 (HIGH). A Denial of Service vulnerability was found in Hilscher PROFINET IO Device V3 in versions prior to V3.14.0.7. This may lead to unexpected loss of cyclic communication or interruption of acyclic commun...

How severe is CVE-2021-20986?

CVE-2021-20986 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20986?

Check the references section above for vendor advisories and patch information. Affected products include: Hilscher Profinet Io Device Firmware, Hilscher Profinet Io Device, Pepperl-Fuchs Pgv100-F200A-B17-V1D Firmware, Pepperl-Fuchs Pgv100-F200A-B17-V1D, Pepperl-Fuchs Pgv150I-F200A-B17-V1D Firmware.