CVE-2020-11909

CRITICAL 9.1EPSS 3.6%

The Treck TCP/IP stack before 6.0.1.66 has an IPv4 Integer Underflow.

CVSS v3.1: 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v3.1: 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v2.0: 5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
EPSS: 3.59% chance of exploitation in the next 30 days, 89th percentile
Published: 2020-06-17
Updated: 2025-09-30

Proof-of-concept exploits (1)

https://www.jsof-tech.com/ripple20/

References

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