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🛡️ CVE-2022-50971 — malwarebytes

🟠 CVSS 7.8 — High ⚠️ Exploit Public CWE-428 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2022-50971 is classified as CWE-428: Unquoted Search Path or Element. A path containing spaces is used unquoted, so the system may execute a different file than intended.

Affected software

CVE-2022-50971 is recorded against 1 package.

  • malwarebytes (fixed in 4.5.0)

Timeline and source

Published on 19 June 2026 and last revised on 26 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

www.exploit-db.com
www.malwarebytes.com
www.malwarebytes.com
www.vulncheck.com

Other advisories for this package

malwarebytes has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-428: Unquoted Search Path or Element) in other software:

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-428
Public Exploit ⚠️ Yes
Source NVD
Published 2026-06-19
Updated 2026-08-20
Modified 2026-06-26
Fix URL N/A

Affected Packages

Software From version Fixed in
malwarebytes — 4.5.0

Similar Threats

Exploit Protection

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CVE-2022-50971 carries CVSS 7.8 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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