What is CVE-2022-4780?

CVE-2022-4780 is a medium-severity vulnerability in Elvexys Isos, classified under Use of Hard-coded Credentials. CVSS score: 4.5/10. Published 2022-12-29.

How severe is CVE-2022-4780?

Medium severity. CVSS v3 base score is 4.5 out of 10.

Vulnerability in Elvexys Isos

CVE-2022-4780

ISOS firmwares from versions 1.81 to 2.00 contain hardcoded credentials from embedded StreamX installer that integrators are not forced to change.

Published 2022-12-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.5 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.002 (3.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Elvexys Isos — versions 1.81
Elvexys Isos Firmware

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

elvexys.com/products/xpg-gateway-rtu-protocol-converter/isos-release-notes/ (release-notes, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2022-4780?: CVE-2022-4780 is a medium-severity vulnerability in Elvexys Isos, classified under Use of Hard-coded Credentials. CVSS score: 4.5/10. Published 2022-12-29.
How severe is CVE-2022-4780?: Medium severity. CVSS v3 base score is 4.5 out of 10.