What is CVE-2017-8862?

CVE-2017-8862 is a critical-severity vulnerability in Cohuhd 3960hd, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2017-11-22.

How severe is CVE-2017-8862?

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

Arbitrary file upload in Cohuhd 3960hd

CVE-2017-8862

The webupgrade function on the Cohu 3960HD does not verify the firmware upgrade files or process, allowing an attacker to upload a specially crafted postinstall.sh file that will be executed with "root" privileges.

Vulnerability class: Unrestricted File Upload

EPSS: 0.015 (71.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cohuhd 3960hd
Cohuhd 3960hd_firmware
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

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

Frequently asked questions

What is CVE-2017-8862?: CVE-2017-8862 is a critical-severity vulnerability in Cohuhd 3960hd, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2017-11-22.
How severe is CVE-2017-8862?: Critical severity. CVSS v3 base score is 9.8 out of 10.