What is CVE-2020-14023?

CVE-2020-14023 is a medium-severity vulnerability in Ozeki Ng Sms Gateway, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.9/10. Published 2020-09-22.

How severe is CVE-2020-14023?

Medium severity. CVSS v3 base score is 4.9 out of 10.

SSRF in Ozeki Ng Sms Gateway

CVE-2020-14023

Ozeki NG SMS Gateway through 4.17.6 allows SSRF via SMS WCF or RSS To SMS.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2020-09-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Ozeki Ng Sms Gateway

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

www.ozeki.hu/index.php (Product, Vendor Advisory)
github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-14023-Server Side Req… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-14023?: CVE-2020-14023 is a medium-severity vulnerability in Ozeki Ng Sms Gateway, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.9/10. Published 2020-09-22.
How severe is CVE-2020-14023?: Medium severity. CVSS v3 base score is 4.9 out of 10.