CVE-2022-50971
Malwarebytes 4.5 Unquoted Service Path Privilege Escalation
Description
Malwarebytes 4.5 contains an unquoted service path vulnerability in the MBAMService executable that allows local attackers to escalate privileges by injecting malicious code into the system root path. Attackers can place executable files in unquoted path directories that execute with LocalSystem privileges during service startup or system reboot.
INFO
Published Date :
June 19, 2026, 3:16 p.m.
Last Modified :
June 26, 2026, 12:59 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Quote the service path for MBAMService executable.
- Ensure service path is properly secured.
- Restart the service after applying the fix.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-50971.
| URL | Resource |
|---|---|
| https://www.exploit-db.com/exploits/50806 | VDB Entry Exploit |
| https://www.malwarebytes.com/ | Product |
| https://www.malwarebytes.com/mwb-download/ | Product |
| https://www.vulncheck.com/advisories/malwarebytes-unquoted-service-path-privilege-escalation | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50971 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-50971
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-50971 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50971 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 26, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:malwarebytes:malwarebytes:*:*:*:*:*:windows:*:* versions up to (including) 4.5.0 Added Reference Type VulnCheck: https://www.exploit-db.com/exploits/50806 Types: Exploit, VDB Entry Added Reference Type VulnCheck: https://www.malwarebytes.com/ Types: Product Added Reference Type VulnCheck: https://www.malwarebytes.com/mwb-download/ Types: Product Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/malwarebytes-unquoted-service-path-privilege-escalation Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 22, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2022-50971', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-06-22T14:33:58.960955Z'} -
New CVE Received by [email protected]
Jun. 19, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Malwarebytes', 'product': 'Malwarebytes', 'versions': [{'status': 'affected', 'version': '4.5.0'}]}] Added Description Malwarebytes 4.5 contains an unquoted service path vulnerability in the MBAMService executable that allows local attackers to escalate privileges by injecting malicious code into the system root path. Attackers can place executable files in unquoted path directories that execute with LocalSystem privileges during service startup or system reboot. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-428 Added Reference https://www.exploit-db.com/exploits/50806 Added Reference https://www.malwarebytes.com/ Added Reference https://www.malwarebytes.com/mwb-download/ Added Reference https://www.vulncheck.com/advisories/malwarebytes-unquoted-service-path-privilege-escalation