CVE-2025-30415Network attack vector

Unauthenticated service interruption via malformed input

Published Jun 4, 2025 · Updated Mar 17, 2026

Improper input validation in Acronis Cyber Protect Cloud Agent before build 40077 allows remote attackers to interrupt service. Acronis Cyber Protect 17 before build 41186 is also affected, but Acronis has not disclosed the malformed input, receiving component, or validation error. Exploitation requires unauthenticated network access and causes an availability-only interruption, with no reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Acronis Cyber Protect Cloud Agent before build 40077 allows remote attackers to interrupt service. Acronis Cyber Protect 17 before build 41186 is also affected, but Acronis has not disclosed the malformed input, receiving component, or validation error. Exploitation requires unauthenticated network access and causes an availability-only interruption, with no reported data disclosure or modification.

The record

CVE
CVE-2025-30415
Published
Jun 4, 2025
Updated
Mar 17, 2026
Vendor
Acronis
Product
Acronis Cyber Protect
Classifications
CWE-1286, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 17, 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 <41186

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Acronis · Acronis Cyber Protectversion=unspecified <41186
Acronis · Acronis Cyber Protect Cloud Agentversion=unspecified <40077

Published CVSS scores

7.5AcronisCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1286Improper Validation of Syntactic Correctness of Input
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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