Buffer overflow in Treck Tcp\/ip

CVE-2020-11897

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

Vulnerability class: Buffer Overflow

EPSS: 0.091 (94.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-11897?
CVE-2020-11897 is a critical-severity vulnerability in Treck Tcp\/ip, classified under Out-of-bounds Write. CVSS score: 10.0/10. Published 2020-06-17.
How severe is CVE-2020-11897?
Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2020-11897 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.