High severity · published Aug 2, 2021
CVE-2021-33526
In MB connect line mbDIALUP versions <= 3.9R0.0 a low privileged local attacker can send a command to the service running with NT AUTHORITY\SYSTEM instructing it to execute a…
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
In MB connect line mbDIALUP versions <= 3.9R0.0 a low privileged local attacker can send a command to the service running with NT AUTHORITY\SYSTEM instructing it to execute a malicous OpenVPN configuration resulting in arbitrary code execution with the privileges of the service.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MB
Mbdialup · Mbconnectline
through 3.9r0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33526
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33526
Third Party Advisory
https://cert.vde.com/de-de/advisories/vde-2021-017
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