What is CVE-2022-30036?

CVE-2022-30036 is a high-severity vulnerability in Malighting Grandma2 Light, classified under Use of Hard-coded Credentials. CVSS score: 8.8/10. Published 2022-08-21.

How severe is CVE-2022-30036?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Malighting Grandma2 Light

CVE-2022-30036

MA Lighting grandMA2 Light has a password of root for the root account. NOTE: The vendor's position is that the product was designed for isolated networks. Also, the successor product, grandMA3, is not affected by this vulnerability.

Published 2022-08-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

www.malighting.com/product-archive/product/grandma2-light-120112/ (Product, Vendor Advisory)
parzival.sh/posts/Pwning-a-Lighting-Console-in-a-Few-Minutes/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-30036?: CVE-2022-30036 is a high-severity vulnerability in Malighting Grandma2 Light, classified under Use of Hard-coded Credentials. CVSS score: 8.8/10. Published 2022-08-21.
How severe is CVE-2022-30036?: High severity. CVSS v3 base score is 8.8 out of 10.