8.6

CVE-2021-20987: hilscher ethernet\/ip_adapter_firmware Out-of-bounds Write

CVSS: 8.6v3.1HighModified
Published 16-02-2021Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-20987 is a high (CVSS 8.6) Out-of-bounds Write vulnerability in hilscher ethernet\/ip_adapter_firmware. EPSS estimates a 1.14% chance of exploitation in the next 30 days, higher than 66.2% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.1 (CVE.org)
EPSS score
1.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-02-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.14%

Chance of exploitation in the next 30 days

Percentile

66%

Versus all other CVEs

30-day change

0.00 pp

From 1.14% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Pepperl-fuchs7 products
Hilscher2 products
Pepper+fuchs2 products
  • pcv/pxv/pgv≥ PXV100-F200-B25-V1D, PXV100I-F200-B25-V1D, PCV100-F200-B25-V1D-6011-6720, PCV50-F200-B25-V1D, PCV80-F200-B25-V1D, PCV100-F200-B25-V1D-6011, ≤ V1.10.0
  • wcs≥ WCS3B-LS510, WCS3B-LS510H, WCS3B-LS510D, WCS3B-LS510DH, WCS3B-LS510H-OM, WCS3B-LS510DH-OM, WCS3B-LS510D-OM, WCS3B-LS510-OM, ≤ V1.2.1

3 vendors · 11 products

References

2 links