Vulnerability in Barracuda Networks Rmm
CVE-2026-22676
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (1.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Barracuda Networks Rmm — versions 0
Weakness classification (CWE)
References
- download.mw-rmm.barracudamsp.com/PDF/2025.2.2/RN_BRMM_2025.2.2_EN.pdf (vendor-advisory, patch)
- www.vulncheck.com/advisories/barracuda-rmm-privilege-escalation-via-insecure-di… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-22676?
- CVE-2026-22676 is a high-severity vulnerability in Barracuda Networks Rmm, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2026-04-15.
- How severe is CVE-2026-22676?
- High severity. CVSS v3 base score is 7.8 out of 10.