CVE-2020-11899

MEDIUM
5.4
CVSS Score
Published: June 17, 2020 at 10:27 AM UTC
Updated: June 17, 2026 at 02:51 AM UTC
7 products affected across 2 vendorsTCP /ipWyse 5050 All in One FirmwareWyse 5030 Firmware

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Severity
MEDIUM5.4
Exploitation
CISA KEV
Exploit prediction
EPSS 18%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score18.4%

EPSS (Exploit Prediction Scoring System) estimates a 18.4% chance this CVE is exploited in the wild within the next 30 days — higher than 97% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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

Required Action
Apply updates per vendor instructions.
Ransomware Use
Unknown
Added to KEV
Mar 3, 2022
Remediation Due
Mar 17, 2022
1689 days overdue

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
dell-wyse-5030 (same device)
All versions
dell-wyse-5050-all-in-one (same device)
All versions
dell-wyse-7030 (same device)
v < 6.0.1.66
Affected range stops below 6.0.1.66, so it looks safe — our inference, not a vendor statement
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCActiveNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMCISA-ADP
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-125

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