CVE-2025-30410Network attack vector

Sensitive data disclosure and manipulation via missing authentication

Published Feb 20, 2026 · Updated Feb 20, 2026

Missing authentication in Acronis Cyber Protect products allows remote attackers to disclose and manipulate sensitive data over a network. Acronis has not disclosed the affected endpoint or the authentication check omitted when processing untrusted network requests. Affected builds are Cloud Agent before 39870, Cyber Protect 16 before 39938, and Cyber Protect 15 before 41800; no credentials or user action are required.

CVSS severity9.8
Critical
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Acronis Cyber Protect products allows remote attackers to disclose and manipulate sensitive data over a network. Acronis has not disclosed the affected endpoint or the authentication check omitted when processing untrusted network requests. Affected builds are Cloud Agent before 39870, Cyber Protect 16 before 39938, and Cyber Protect 15 before 41800; no credentials or user action are required.

The record

CVE
CVE-2025-30410
Published
Feb 20, 2026
Updated
Feb 20, 2026
Vendor
Acronis
Product
Acronis Cyber Protect
Classifications
CWE-306
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <39938
  2. Affected versionversion=unspecified <41800

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Acronis · Acronis Cyber Protectversion=unspecified <39938; version=unspecified <41800
Acronis · Acronis Cyber Protect Cloud Agentversion=unspecified <39870

Published CVSS scores

9.8Acronis International GmbHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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