What is CVE-2020-25109?

CVE-2020-25109 is a critical-severity vulnerability in Ethernut Nut\/os, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2020-12-11.

How severe is CVE-2020-25109?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Out-of-bounds Read in Ethernut Nut\/os

CVE-2020-25109

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The number of DNS queries/responses (set in a DNS header) is not checked against the data present. This may lead to successful Denial-of-Service, and possibly Rem…

Vulnerability class: Buffer Overflow

EPSS: 0.523 (98.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ethernut Nut\/os
N/a — versions n/a

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

cve@mitre.org (US Government Resource, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-25109?: CVE-2020-25109 is a critical-severity vulnerability in Ethernut Nut\/os, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2020-12-11.
How severe is CVE-2020-25109?: Critical severity. CVSS v3 base score is 9.8 out of 10.