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Fencer Intel
medium 4.3

CVE-2021-33011 json

All versions of the afffected TOYOPUC-PC10 Series,TOYOPUC-Plus Series,TOYOPUC-PC3J/PC2J Series, TOYOPUC-Nano Series products may not be abl…

published 5y ago modified 4mo ago also EUVD-2021-19732

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

All versions of the afffected TOYOPUC-PC10 Series,TOYOPUC-Plus Series,TOYOPUC-PC3J/PC2J Series, TOYOPUC-Nano Series products may not be able to properly process an ICMP flood, which may allow an attacker to deny Ethernet communications between affected devices.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-245-02 updated cvss 4.3

JTEKT TOYOPUC Products

  • JTEKT Corporation 2PORT-EFR THU-6404 JTEKT Corporation EF10 TCU-6982 JTEKT Corporation FL/ET-T-V2H THU-6289 JTEKT Corporation Nano 2ET TUU-6949 JTEKT Corporation Nano 10GX TUC-1157 JTEKT Corporation Nano CPU TUC-6941
    +21 more products
    JTEKT Corporation Nano Safety RS00IP TUU-1086 JTEKT Corporation Nano Safety RS01IP TUU-1087 JTEKT Corporation Nano Safety TUC-1085 JTEKT Corporation PC10B TCC-1021 JTEKT Corporation PC10B-E/C TCU-6521 JTEKT Corporation PC10B-P TCC-6373 JTEKT Corporation PC10E TCC-4637 JTEKT Corporation PC10G-CPU TCC-6353 JTEKT Corporation PC10GE TCC-6464 JTEKT Corporation PC10P TCC-6372 JTEKT Corporation PC10P-DP TCC-6726 JTEKT Corporation PC10P-DP-IO TCC-6752 JTEKT Corporation PC10PE TCC-1101 JTEKT Corporation PC10PE-1616P TCC-1102 JTEKT Corporation Plus 2P-EFR TCU-6929 JTEKT Corporation Plus BUS-EX TCU-6900 JTEKT Corporation Plus CPU TCC-6740 JTEKT Corporation Plus EFR TCU-6743 JTEKT Corporation Plus EFR2 TCU-6859 JTEKT Corporation Plus EX TCU-6741 JTEKT Corporation Plus EX2 TCU-6858
    affected: mitigation “Locate control system networks and remote devices behind firewalls and isolate them from the business network.” us-cert.cisa.gov

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 2.0 3.3 AV:A/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • n/a JTEKT Corporation TOYOPUC products

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.