CVE-2020-8234

Name: CVE-2020-8234
Creator: NVD / NIST
Published: 2020-08-21T21:15:12.027+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.41%

Last modified Jun 17, 2026

CVE-2020-8234 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability exists in The EdgeMax EdgeSwitch firmware <v1.9.1 where the EdgeSwitch legacy web interface SIDSSL cookie for admin can be guessed, enabling the attacker to obtain high privileges and get a root shell by a Command injection.. EPSS estimates a 3.41% chance of exploitation in the next 30 days.

Description

A vulnerability exists in The EdgeMax EdgeSwitch firmware <v1.9.1 where the EdgeSwitch legacy web interface SIDSSL cookie for admin can be guessed, enabling the attacker to obtain high privileges and get a root shell by a Command injection.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.41%

87.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ui	Edgemax Firmware	< 1.9.1

References

Timeline

Published: Aug 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8234?

How severe is CVE-2020-8234?

CVE-2020-8234 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.41% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8234?

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-2020-8234?

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

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Source: NVD / NIST