IRONSMITHINTEL
CRITICALCVSS9.8
|
Actively Exploited
|CISA KEV|CVE-2023-45249|Auth: none — unauthenticated|Reboot: required|Manual only

Acronis Cyber Infrastructure (ACI) Insecure Default Password Vulnerability (CVE-2023-45249)

Acronis Cyber Infrastructure (ACI) allows an unauthenticated user to execute commands remotely due to the use of default passwords.

Published Jul 24, 2024 · Updated May 29, 2026
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Why patchRisk explained in plain English
Worst-case scenarioIf unpatched

A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. Federal agencies are required to remediate by 2024-08-19 under CISA BOD 22-01.

How the attack worksNo clicks needed

This is a Software Vulnerability (CWE-1393) (CWE-1393) vulnerability in Acronis Cyber Infrastructure (ACI). Remote command execution due to use of default passwords. The following products are affected: Acronis Cyber Infrastructure (ACI) before build 5.0.1-61, Acronis Cyber Infrastructure (ACI) before build 5.1.1-71, Acronis Cyber Infrastructure (ACI) before build 5.2.1-69, Acronis Cyber Infrastructure (ACI) before build 5.3.1-53, Acronis Cyber Infrastructure (ACI) before build 5.4.4-132. Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.

📧

Phishing link

→

🖼

Malicious file

🔓

Server compromised

Am I affected?Quick check

Probably yes if any of these apply:

●IT Security
●Running cyber infrastructure: v < 5.0.1-61, 5.1.1 ≤ v < 5.1.1-71, 5.2.1 ≤ v < 5.2.1-69, 5.3.1 ≤ v < 5.3.1-53, 5.4.4 ≤ v < 5.4.4-132
Real-world incidentsWhat we've seen

Active exploitation documented in the wild. Threat-research write-up: https://www.securityweek.com/acronis-product-vulnerability-exploited-in-the-wild/

How to patch

Manual remediation steps

Apply the Vendor Patch

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog — apply the vendor's security update as soon as possible.

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

    1
    Vendor advisory: https://security-advisory.acronis.com/advisories/SEC-6452
    1
    NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2023-45249
    1
    CISA KEV: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-45249
PowerShell automationComing soon

No tested PowerShell script for this entry yet. We’re prioritising automation based on user demand.

References

↗ CVE-2023-45249↗ Advisory

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