What is CVE-2020-12837?

CVE-2020-12837 is a high-severity vulnerability in Gogogate Ismartgate Pro, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.5/10. Published 2020-09-24.

How severe is CVE-2020-12837?

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

Arbitrary file upload in Gogogate Ismartgate Pro

CVE-2020-12837

ismartgate PRO 1.5.9 is vulnerable to malicious file uploads via the form for uploading images to garage doors. The magic bytes of PNG must be used.

Vulnerability class: Unrestricted File Upload

Published 2020-09-24 · last modified 2026-06-17.

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:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (59.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Gogogate Ismartgate Pro
Gogogate Ismartgate Pro Firmware — versions 1.5.9

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

ismartgate.com/secure-garage-door/ (Product, Vendor Advisory)
kth.diva-portal.org/smash/get/diva2:1464458/FULLTEXT01.pdf (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-12837?: CVE-2020-12837 is a high-severity vulnerability in Gogogate Ismartgate Pro, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.5/10. Published 2020-09-24.
How severe is CVE-2020-12837?: High severity. CVSS v3 base score is 7.5 out of 10.