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Acronis Cyber Protect CVE Cluster (Feb 2026)

Critical vulnerability response: three CVSS 10.0 and one 9.8 authentication/authorization bypass CVEs in Acronis Cyber Protect 15, 16, and Cloud Agent. CVE-2025-30411, CVE-2025-30412, CVE-2025-30416, CVE-2025-30410. Published Feb 20, 2026.

Distilled Context

Acronis Cyber Protect CVE Cluster — Distilled Context

Summary

On Feb 20, 2026, Acronis disclosed 7 vulnerabilities in Cyber Protect. Three are CVSS 10.0, one is 9.8. All critical flaws allow unauthenticated remote access to sensitive data. No public PoC yet. Patches available.

Critical CVEs

CVECVSSFlawCWE
CVE-2025-3041110.0Improper AuthenticationAuthentication bypass → data disclosure + manipulation
CVE-2025-3041210.0Insufficient AuthenticationSame vector, separate auth failure
CVE-2025-3041610.0Missing AuthorizationNo authorization check at all on protected components
CVE-2025-304109.8Missing Authentication (Cloud Agent)Agent-level unauthenticated access

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Translation: network-exploitable, trivial complexity, zero credentials needed, no user interaction, full CIA impact with changed scope.

Affected Products & Fix Versions

  • Cyber Protect 16 (Linux, Windows): vulnerable before build 39938 → apply Update 4
  • Cyber Protect 15 (Linux, Windows): vulnerable before build 41800
  • Cloud Agent (Linux, macOS, Windows): vulnerable before build 39870 → apply C25.03 Hotfix 2

Lower Severity (same disclosure)

  • CVE-2025-48961 (7.3): Privilege escalation, insecure folder permissions, Windows only
  • CVE-2025-48960 (5.9): Weak TLS server key, multi-platform
  • CVE-2025-48962 (4.3): SSRF, macOS only

Why This Matters

Acronis Cyber Protect manages backups and endpoint protection. Compromising it gives attackers access to backup data for all protected systems, ability to modify/disable backup policies (pre-ransomware prep), and agent-level endpoint access. This is a force multiplier.

Key Dates

  • 2025-03-21: CVE reserved
  • 2026-02-20: Public disclosure
  • Patches available: ~1 month prior to disclosure (Update 4 / Hotfix 2)
  • CISA KEV: Not yet listed — monitor daily