What is the CVSS score of CVE-2025-30411?

CVE-2025-30411 has a CVSS 3.0 base score of 10.0 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2025-30411?

Within 24 hours: Isolate affected Acronis systems from internet-facing networks and restrict administrative access to trusted personnel only. Within 7 days: Audit all backup activities and access logs for suspicious authentication or data manipulation; conduct forensic review of recent backup jobs. Within 30 days: Implement network segmentation with strict firewall rules limiting Acronis access to authorized networks only; monitor vendor security advisories for patch availability and prepare deployment plan immediately upon release.

Cyber Protect CVE-2025-30411

CRITICAL

Weak Authentication (CWE-1390)

2026-02-20 security@acronis.com

Windows Linux Cyber Protect Acronis

10.0

CVSS 3.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-1390 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Strong authentication
Impact	CVSS 10.0. Backup infrastructure compromise.
Exploit ScenarioDerived	Bypass authentication to access backup management.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Improper authentication in Acronis Cyber Protect 16. CVSS 10.0.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 22:04 CVSS 10.0

Auth bypass in Acronis Cyber Protect 16.

RemediationAI

Apply vendor patch.

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Technical ContextAI · show details

CWE-1390 weak authentication.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 10.0 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

Sensitive data disclosure and manipulation due to improper authentication. The following products are affected: Acronis Cyber Protect 16 (Linux, Windows) before build 39938, Acronis Cyber Protect 15 (Linux, Windows) before build 41800.

Executive ViewAI

Why It Matters

A critical authentication vulnerability in Acronis Cyber Protect 15 and 16 allows attackers to access and modify sensitive data without proper credentials, affecting both Linux and Windows deployments. This poses an immediate risk to backup integrity and confidentiality across backup infrastructure, potentially compromising the organization's disaster recovery capabilities and exposing protected data.

Business Impact: Severe

Compensating Controls

Implement network-layer segmentation to restrict access to Acronis systems; disable remote management interfaces if not actively required; enforce strict firewall rules limiting ingress to Acronis services; enable and monitor all available audit logging for authentication and data access events; implement secondary authentication mechanisms at network boundary (VPN/bastion host); consider air-gapping critical backup infrastructure until patch availability; deploy intrusion detection rules to detect unauthorized Acronis API access patterns.

Threat Intelligence Overview

EPSS Score

0.0%

Top 96% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC No

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +50

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Affected Products (CPE)CVE.org

cpe:2.3:a:acronis:cyber_protect:15:-:*:*:*:*:*:*

cpe:2.3:a:acronis:cyber_protect:15:update1:*:*:*:*:*:*

cpe:2.3:a:acronis:cyber_protect:15:update2:*:*:*:*:*:*

cpe:2.3:a:acronis:cyber_protect:15:update3:*:*:*:*:*:*

cpe:2.3:a:acronis:cyber_protect:15:update4:*:*:*:*:*:*

cpe:2.3:a:acronis:cyber_protect:15:update5:*:*:*:*:*:*

cpe:2.3:a:acronis:cyber_protect:15:update6:*:*:*:*:*:*

cpe:2.3:a:acronis:cyber_protect:16:-:*:*:*:*:*:*

cpe:2.3:a:acronis:cyber_protect:16:update1:*:*:*:*:*:*

cpe:2.3:a:acronis:cyber_protect:16:update2:*:*:*:*:*:*

cpe:2.3:a:acronis:cyber_protect:16:update3:*:*:*:*:*:*

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Same weakness CWE-1390 – Weak Authentication

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References

Advisories & patches

ADVISORY https://security-advisory.acronis.com/advisories/SEC-8768

Search Externally

GitHub PoC

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