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CVE-2020-11897

The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6...

10.0 Critical

CVE-2020-11897 is a critical vulnerability (CVSS 10.0) in Treck Tcp\/ip, published June 17, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 9.37%, the 95th percentile. No source names a fixed version.

The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6 packets.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

9.37%Up 7.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 10.0

The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6 packets.

Record
CVE-2020-11897
CVSS 3.1
10.0 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0
10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6 packets.

Record
CVE-2020-11897
Updated
2026-11-02
EUVDEUVD-2020-4234 No score

The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6 packets.

Record
EUVD-2020-4234
Updated
2026-11-03
GitHub AdvisoriesGHSA-95jv-7wgq-5p3q No score

The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6...

The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6 packets.

Record
GHSA-95jv-7wgq-5p3q
Updated
2026-11-02

Affected products

History

History
WhenChangedSources
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD

References

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