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HIGH · 8.6

CVE-2021-20987

A denial of service and memory corruption vulnerability was found in Hilscher EtherNet/IP Core V2 prior to V2.13.0.21that may lead to code injection through network or make devices crash without recov...

Vulnerability Description

A denial of service and memory corruption vulnerability was found in Hilscher EtherNet/IP Core V2 prior to V2.13.0.21that may lead to code injection through network or make devices crash without recovery.

CVSS Score

8.6

HIGH

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

Affected Products

VendorProductVersions
HilscherEthernet\/Ip Adapter Firmware>= 2.0, < 2.13.0.21
HilscherEthernet\/Ip Adapter-
Pepperl-FuchsWcs Firmware<= 1.2.1
Pepperl-FuchsWcs3B-Ls510-
Pepperl-FuchsWcs3B-Ls510-Om-
Pepperl-FuchsWcs3B-Ls510D-
Pepperl-FuchsWcs3B-Ls510D-Om-
Pepperl-FuchsWcs3B-Ls510Dh-
Pepperl-FuchsWcs3B-Ls510Dh-Om-
Pepperl-FuchsWcs3B-Ls510H-
Pepperl-FuchsWcs3B-Ls510H-Om-
Pepperl-FuchsPxv100-F200-B25-V1D Firmware<= 1.10.0
Pepperl-FuchsPxv100-F200-B25-V1D-
Pepperl-FuchsPxv100I-F200-B25-V1D Firmware<= 1.10.0
Pepperl-FuchsPxv100I-F200-B25-V1D-
Pepperl-FuchsPcv100-F200-B25-V1D-6011-6720 Firmware<= 1.10.0
Pepperl-FuchsPcv100-F200-B25-V1D-6011-6720-
Pepperl-FuchsPcv50-F200-B25-V1D Firmware<= 1.10.0
Pepperl-FuchsPcv50-F200-B25-V1D-
Pepperl-FuchsPcv80-F200-B25-V1D Firmware<= 1.10.0

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2021-20987?

CVE-2021-20987 is a vulnerability with a CVSS score of 8.6 (HIGH). A denial of service and memory corruption vulnerability was found in Hilscher EtherNet/IP Core V2 prior to V2.13.0.21that may lead to code injection through network or make devices crash without recov...

How severe is CVE-2021-20987?

CVE-2021-20987 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20987?

Check the references section above for vendor advisories and patch information. Affected products include: Hilscher Ethernet\/Ip Adapter Firmware, Hilscher Ethernet\/Ip Adapter, Pepperl-Fuchs Wcs Firmware, Pepperl-Fuchs Wcs3B-Ls510, Pepperl-Fuchs Wcs3B-Ls510-Om.