CVE-2026-22676
highpriority · track · 0EPSS 0.001 · 1 %ileEUEPSS · scored 2026-10-28
Barracuda RMM versions prior to 2025.2.2 contain a privilege escalation vulnerability that allows local attackers to gain SYSTEM-level privileges by exploiting overly permissive filesystem ACLs on the C:\Windows\Automation directory. Attackers can modify existing automation content or place attacker-controlled files in this directory, which are then executed under the NT AUTHORITY\SYSTEM account during routine automation cycles, typically succeeding within the next execution cycle.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–8.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2026-22676cnnvd
- https://download.mw-rmm.barracudamsp.com/PDF/2025.2.2/RN_BRMM_2025.2.2_EN.pdfenisa_euvd
- https://www.vulncheck.com/advisories/barracuda-rmm-privilege-escalation-via-insecure-directory-permissionsenisa_euvd
- https://download.mw-rmm.barracudamsp.com/PDF/2025.2.2/RN_BRMM_2025.2.2_EN.pdfnvd
- https://www.vulncheck.com/advisories/barracuda-rmm-privilege-escalation-via-insecure-directory-permissionsnvd
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