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CVE-2020-11899Treck TCP/IP stack Out-of-Bounds Read Vulnerability

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

5.4 MEDIUMEPSS 18.42%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 02:51 UTC

OverviewCVSS details

5.4MEDIUMCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Jun 17, 2020
Assigner: mitre

Affected

tcp/ip (treck)

Versions: before 6.0.1.66
Fixed in: 6.0.1.66

+3 more products →

Exploitation

Public exploit: Yes · 1 reference
CISA KEV: Listed · Mar 3, 2022
KEV due date: Mar 17, 2022
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact partial

EPSS · FIRST, scored Nov 8

18.42%chance of exploitation in 30 days

Higher than 97.25% of CVEs

CVSS 3.1 · NVD

5.4Medium

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Attack vector: Adjacent
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: Low
Availability impact: Low

CVSS 2.0 · NVD

4.8Medium

AV:A/AC:L/Au:N/C:N/I:P/A:P

Attack vector: Adjacent network
Attack complexity: Low
Authentication: None
Confidentiality impact: None
Integrity impact: Partial
Availability impact: Partial

NVD status: Analyzed

Overview Affected Products References

Overview

Severity

Score	Severity	Version	Vector String
5.4	MEDIUM	3.1NVD	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
4.8	MEDIUM	2.0NVD	AV:A/AC:L/Au:N/C:N/I:P/A:P

CISA required action

⚡ Known exploited · remediation due Mar 17, 2022

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Details

CVE ID: CVE-2020-11899
Status: Analyzed
Assigner (CNA): mitre
Published: Jun 17, 2020
Last modified: 2026-06-17 02:51 UTC
Weaknesses: CWE-125

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-09 13:13 UTC.