What is CVE-2021-38387?

CVE-2021-38387 is a high-severity vulnerability in Contiki-os Contiki, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2021-08-10.

How severe is CVE-2021-38387?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Contiki-os Contiki

CVE-2021-38387

In Contiki 3.0, a Telnet server that silently quits (before disconnection with clients) leads to connected clients entering an infinite loop and waiting forever, which may cause excessive CPU consumption.

EPSS: 0.010 (58.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Contiki-os Contiki — versions 3.0
N/a — versions n/a

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

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

Frequently asked questions

What is CVE-2021-38387?: CVE-2021-38387 is a high-severity vulnerability in Contiki-os Contiki, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2021-08-10.
How severe is CVE-2021-38387?: High severity. CVSS v3 base score is 7.5 out of 10.