CVE-2022-50971

Malwarebytes 4.5 Unquoted Service Path Privilege Escalation

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.

Affected

Malwarebytes

CVSS v4.0 VULNCHECK

8.5 HIGHCVSS:4.0/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

CVSS v3.1 VULNCHECK

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

EPSS

0.22% chance of exploitation in the next 30 days, 12th percentile

Published

2026-06-19

Updated

2026-07-15

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/50806

Security advisories

• https://www.vulncheck.com/advisories/malwarebytes-unquoted-service-path-privilege-escalat…
• https://www.malwarebytes.com
• https://www.malwarebytes.com/mwb-download

References

• CVE Record
• NVD entry