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 recovery.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 1.14% probability · 66th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- hilscher/ethernet\/ip adapter firmware · pepperl-fuchs/wcs firmware · pepperl-fuchs/pxv100-f200-b25-v1d firmware · pepperl-fuchs/pxv100i-f200-b25-v1d firmware · pepperl-fuchs/pcv100-f200-b25-v1d-6011-6720 firmware · pepperl-fuchs/pcv50-f200-b25-v1d firmware · pepperl-fuchs/pcv80-f200-b25-v1d firmware · pepperl-fuchs/pcv100-f200-b25-v1d-6011 firmware
- Source
- info@cert.vde.com
EPSS 1.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://cert.vde.com/en-us/advisories/vde-2021-007Third Party Advisory
- https://kb.hilscher.com/pages/viewpage.action?pageId=108969480Vendor Advisory
- https://cert.vde.com/en-us/advisories/vde-2021-007Third Party Advisory
- https://kb.hilscher.com/pages/viewpage.action?pageId=108969480Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.