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CVE-2020-11899

Treck TCP/IP stack Out-of-Bounds Read

5.4 MEDIUMActively exploited (CISA KEV)Public exploitEPSS 18.4%
  1. Published17 Jun 2020
  2. Added to CISA KEV3 Mar 2022
  3. Remediation due17 Mar 2022
Actively exploited (CISA KEV)

The Treck TCP/IP stack contains an IPv6 out-of-bounds read vulnerability.

Added to KEV: 3 Mar 2022Federal remediation due: 17 Mar 2022

Description

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

CVSS 3.1 breakdown

Attack vectorAdjacent
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Affected products

Treck Tcp/ip< 6.0.1.66
Dell Wyse 5030 Firmwareall versions
Dell Wyse 5050 All-in-one Firmwareall versions
Dell Wyse 7030 Firmwareall versions

Remediation

Fixed in
Treck Tcp/ip≥ 6.0.1.66
Patch & vendor advisories

References

and 2 more references

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Frequently asked

Is CVE-2020-11899 being actively exploited?

Yes. CVE-2020-11899 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Mar 2022.

How severe is CVE-2020-11899?

CVE-2020-11899 has a CVSS 3.1 base score of 5.4, rated medium. EPSS estimates a 18.4% probability of exploitation.

Which products are affected by CVE-2020-11899?

Affected products include Treck Tcp/ip, Dell Wyse 5030 Firmware, Dell Wyse 5050 All-in-one Firmware, Dell Wyse 7030 Firmware.

How do I fix CVE-2020-11899?

Upgrade affected software to a fixed version, for example Treck Tcp/ip 6.0.1.66 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2020-11899 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.