CVE-2020-11733

Name: CVE-2020-11733
Creator: NVD / NIST
Published: 2020-08-13T14:15:20.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10EPSS 1.56%

Last modified Jun 17, 2026

CVE-2020-11733 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. An issue was discovered on Spirent TestCenter and Avalanche appliance admin interface firmware. An attacker, who already has access to an SSH restricted shell, can achieve root access via shell metacharacters. EPSS estimates a 1.56% chance of exploitation in the next 30 days.

Description

An issue was discovered on Spirent TestCenter and Avalanche appliance admin interface firmware. An attacker, who already has access to an SSH restricted shell, can achieve root access via shell metacharacters. The attacker can then, for example, read sensitive files such as appliance admin configuration source code. This affects Spirent TestCenter and Avalanche products which chassis version <= 5.08. The SSH restricted shell is available with default credentials.

Metrics

CVSS 3.1

6.7/10

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

EPSS Probability

1.56%

72.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Spirent	Avalanche	<= 5.08
Spirent	Testcenter	<= 5.08

References

https://gist.github.com/a05110511t/65d07bc776d7c11b4ccf112a09cca4abThird Party Advisory
https://github.com/a05110511t/CVE/blob/master/CVE-2020-11733.mdThird Party Advisory
https://gist.github.com/a05110511t/65d07bc776d7c11b4ccf112a09cca4abThird Party Advisory
https://github.com/a05110511t/CVE/blob/master/CVE-2020-11733.mdThird Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-11733?

How severe is CVE-2020-11733?

CVE-2020-11733 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 1.56% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11733?

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-2020-11733?

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

Scan your code now

Source: NVD / NIST