What is CVE-2020-25066?

CVE-2020-25066 is a critical-severity vulnerability in Treck Tcp\/ip, classified under Out-of-bounds Write. CVSS score: 10.0/10. Published 2020-12-22.

How severe is CVE-2020-25066?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Buffer overflow in Treck Tcp\/ip

CVE-2020-25066

A heap-based buffer overflow in the Treck HTTP Server component before 6.0.1.68 allows remote attackers to cause a denial of service (crash/reset) or to possibly execute arbitrary code.

Vulnerability class: Buffer Overflow

Published 2020-12-22 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.035 (88.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.033 · newest: 0.035 · change: +0.001

Affected products

Treck Tcp\/ip

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

treck.com/vulnerability-response-information/ (Vendor Advisory)
security.netapp.com/advisory/ntap-20210201-0003/ (Third Party Advisory)

Frequently asked questions

What is CVE-2020-25066?: CVE-2020-25066 is a critical-severity vulnerability in Treck Tcp\/ip, classified under Out-of-bounds Write. CVSS score: 10.0/10. Published 2020-12-22.
How severe is CVE-2020-25066?: Critical severity. CVSS v3 base score is 10.0 out of 10.