CVE-2022-50971

Malwarebytes 4.5 Unquoted Service Path Privilege Escalation

CVSS 8.5 HIGHEPSS 0.2%CWE-428

Vexday Risk Score

41Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 8.5EPSS 0.2%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

19 Jun 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

Malwarebytes · Malwarebytes

public PoCs found — 1

cve_referencewww.exploit-db.com/exploits/50806unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://www.exploit-db.com/exploits/50806 https://www.malwarebytes.com/https://www.malwarebytes.com/mwb-download/https://www.vulncheck.com/advisories/malwarebytes-unquoted-service-path-privilege-escalation