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Medium 5.4Known exploited (CISA KEV)Published Jun 17, 2020

CVE-2020-11899The Treck TCP/IP stack before 6.0.1.66 has an IPv6 Out-of-bounds Read.

Updated under an hour ago ()

Does this affect you?

It affects treck tcp/ip and 3 other products. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Mar 3, 2022; federal agencies had to remediate by Mar 17, 2022. Treat that date as your deadline.

The Treck TCP/IP stack before 6.0.1.66 has an IPv6 Out-of-bounds Read.

CVSS
5.4 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE)
CWE-125
Known exploited
Added to CISA KEV Mar 3, 2022; federal remediation due Mar 17, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days)
18.42% (percentile 97)
Assigned by
mitre
NVD analysis
Analyzed
Record last updated
Oct 21, 2025
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
treck tcp/ip
treck:tcp/ip
before 6.0.1.66
NVD
dell wyse_5050_all-in-one_firmware
dell:wyse_5050_all-in-one_firmware
all versions
NVD
dell wyse_7030_firmware
dell:wyse_7030_firmware
all versions
NVD
dell wyse_5030_firmware
dell:wyse_5030_firmware
all versions
NVD

References

  • x-refsource-misc, technical-description
  • x-refsource-misc, mitigation, third-party-advisory, us-government-resource
  • x-refsource-misc, product, vendor-advisory
  • x-refsource-misc, broken-link, third-party-advisory
  • x-refsource-confirm, third-party-advisory
  • third-party-advisory, x-refsource-cert-vn, us-government-resource
  • x-refsource-misc, broken-link, exploit, third-party-advisory
  • vendor-advisory, x-refsource-cisco, third-party-advisory
  • x-refsource-confirm, broken-link, third-party-advisory
  • x-refsource-confirm, third-party-advisory
  • x-refsource-misc, third-party-advisory
  • us-government-resource

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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