CVE-2025-30409

Service interruption via unbounded resource allocation

Published Apr 24, 2025 · Updated Mar 5, 2026

Resource exhaustion in Acronis Cyber Protect Cloud Agent before build 39904 allows local users to interrupt affected services. Cyber Protect 17 before build 41186 is also affected, but Acronis has not disclosed the allocating component, triggering input, or resource-consuming operation. The flaw requires local low-privileged access on Windows; published evidence identifies availability loss only and does not distinguish a hang, crash, or other interruption.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Acronis Cyber Protect Cloud Agent before build 39904 allows local users to interrupt affected services. Cyber Protect 17 before build 41186 is also affected, but Acronis has not disclosed the allocating component, triggering input, or resource-consuming operation. The flaw requires local low-privileged access on Windows; published evidence identifies availability loss only and does not distinguish a hang, crash, or other interruption.

The record

CVE
CVE-2025-30409
Published
Apr 24, 2025
Updated
Mar 5, 2026
Vendor
Acronis
Product
Acronis Cyber Protect
Classifications
CWE-770, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 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 vectorlocal
Required privilegesauthenticated

What is affected?

Acronis · Acronis Cyber Protectversion=unspecified <41186
Acronis · Acronis Cyber Protect Cloud Agentversion=unspecified <39904

Published CVSS scores

5.5Acronis International GmbHCVSS:3.0/AV:L/AC:L/PR:L/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
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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