What is CVE-2021-40350?

CVE-2021-40350 is a critical-severity vulnerability in Christiedigital Dwu850-Gs, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-09-01.

How severe is CVE-2021-40350?

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

Auth bypass in Christiedigital Dwu850-Gs

CVE-2021-40350

webctrl.cgi.elf on Christie Digital DWU850-GS V06.46 devices allows attackers to perform any desired action via a crafted query containing an unspecified Cookie header. Authentication bypass can be achieved by including an administrative cookie that the device does not validate.

Vulnerability class: Broken Authentication

Published 2021-09-01 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.016 (74.4th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Christiedigital Dwu850-Gs
Christiedigital Dwu850-Gs Firmware — versions 06.46

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

securityshards.wordpress.com/2021/08/31/cve-pending-christie-dwu850-gs-authenti… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-40350?: CVE-2021-40350 is a critical-severity vulnerability in Christiedigital Dwu850-Gs, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-09-01.
How severe is CVE-2021-40350?: Critical severity. CVSS v3 base score is 9.8 out of 10.