CVE-2021-34546

Name: CVE-2021-34546
Creator: NVD / NIST
Published: 2021-06-10T16:15:08.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2021-34546 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. An unauthenticated attacker with physical access to a computer with NetSetMan Pro before 5.0 installed, that has the pre-logon profile switch button within the Windows logon screen enabled, is able to drop to an administrative shell and execute arbitrary commands as SYSTEM via the "save log to file" feature. To accomplish this, the attacker can navigate to cmd.exe.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

An unauthenticated attacker with physical access to a computer with NetSetMan Pro before 5.0 installed, that has the pre-logon profile switch button within the Windows logon screen enabled, is able to drop to an administrative shell and execute arbitrary commands as SYSTEM via the "save log to file" feature. To accomplish this, the attacker can navigate to cmd.exe.

Metrics

CVSS 3.1

6.8/10

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

EPSS Probability

0.69%

48.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Netsetman	Netsetman	< 5.0

References

http://packetstormsecurity.com/files/163097/NetSetManPro-4.7.2-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Jun/17Exploit, Mailing List, Third Party Advisory
https://www.netsetman.comVendor Advisory
https://www.secuvera.deThird Party Advisory
https://www.secuvera.de/advisories/secuvera-SA-2021-01.txtExploit, Third Party Advisory
http://packetstormsecurity.com/files/163097/NetSetManPro-4.7.2-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Jun/17Exploit, Mailing List, Third Party Advisory
https://www.netsetman.comVendor Advisory
https://www.secuvera.deThird Party Advisory
https://www.secuvera.de/advisories/secuvera-SA-2021-01.txtExploit, Third Party Advisory

Timeline

Published: Jun 10, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-34546?

How severe is CVE-2021-34546?

CVE-2021-34546 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2021-34546?

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-2021-34546?

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

Scan your code now

Source: NVD / NIST