CVE-2020-8430

Name: CVE-2020-8430
Creator: NVD / NIST
Published: 2020-04-13T16:15:13.997+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2020-8430 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Stormshield Network Security 310 3.7.10 devices have an auth/lang.html?rurl= Open Redirect vulnerability on the captive portal. For example, the attacker can use rurl=//example.com instead of rurl=https://example.com in the query string.. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

Stormshield Network Security 310 3.7.10 devices have an auth/lang.html?rurl= Open Redirect vulnerability on the captive portal. For example, the attacker can use rurl=//example.com instead of rurl=https://example.com in the query string.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.92%

55.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-601

Affected Software

Vendor	Product	Versions
Stormshield	Stormshield Network Security	>= 3.0.0, <= 3.7.10
Stormshield	Stormshield Network Security	>= 3.8.0, <= 3.10.0
Stormshield	Stormshield Network Security	>= 4.0.0, <= 4.0.1

References

https://advisories.stormshield.eu/2020-001/Vendor Advisory
https://www.digitemis.com/2020/02/24/digitemis-decouvre-une-vulnerabilite-au-sein-dun-produit-stormshield-cve-2020-8430/Third Party Advisory
https://www.digitemis.com/category/blog/actualite/Broken Link
https://www.stormshield.com/products/sn310/Product, Vendor Advisory
https://advisories.stormshield.eu/2020-001/Vendor Advisory
https://www.digitemis.com/2020/02/24/digitemis-decouvre-une-vulnerabilite-au-sein-dun-produit-stormshield-cve-2020-8430/Third Party Advisory
https://www.digitemis.com/category/blog/actualite/Broken Link
https://www.stormshield.com/products/sn310/Product, Vendor Advisory

Timeline

Published: Apr 13, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8430?

How severe is CVE-2020-8430?

CVE-2020-8430 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8430?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8430?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST