CVE-2021-42165

Name: CVE-2021-42165
Creator: NVD / NIST
Published: 2022-05-03T12:15:07.723+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 13.10%

Last modified Jun 17, 2026

CVE-2021-42165 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. MitraStar GPT-2541GNAC-N1 (HGU) 100VNZ0b33 devices allow remote authenticated users to obtain root access by executing command "deviceinfo show file &&/bin/bash" because of incorrect sanitization of parameter "path".. EPSS estimates a 13.10% chance of exploitation in the next 30 days.

Description

MitraStar GPT-2541GNAC-N1 (HGU) 100VNZ0b33 devices allow remote authenticated users to obtain root access by executing command "deviceinfo show file &&/bin/bash" because of incorrect sanitization of parameter "path".

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

13.10%

95.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Mitrastar	Gpt-2541gnac-N1 Firmware	br_g3.5_100vnz0b33

References

https://github.com/leoservalli/Privilege-escalation-MitraStar/blob/main/README.mdExploit, Third Party Advisory
https://packetstormsecurity.com/files/164333/Mitrastar-GPT-2541GNAC-N1-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/50351Exploit, Third Party Advisory, VDB Entry
https://github.com/leoservalli/Privilege-escalation-MitraStar/blob/main/README.mdExploit, Third Party Advisory
https://packetstormsecurity.com/files/164333/Mitrastar-GPT-2541GNAC-N1-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/50351Exploit, Third Party Advisory, VDB Entry

Timeline

Published: May 3, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42165?

How severe is CVE-2021-42165?

CVE-2021-42165 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 13.10% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42165?

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-2021-42165?

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

Scan your code now

Source: NVD / NIST