---
id: "CVE-2023-45249"
kind: "vulnerability"
aliases: ["CVE-2023-45249"]
title: "acronis cyber infrastructure: Remote command execution due to use of default passwords"
severity: "critical"
cvss: 9.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Acronis Cyber Infrastructure (ACI)", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "acronis cyber infrastructure", "fixed": ["5.0.1-61"], "affected": "< 5.0.1-61", "ecosystem": "vendor"}, {"name": "acronis cyber infrastructure", "fixed": ["5.1.1-71"], "affected": ">= 5.1.1, < 5.1.1-71", "ecosystem": "vendor"}, {"name": "acronis cyber infrastructure", "fixed": ["5.2.1-69"], "affected": ">= 5.2.1, < 5.2.1-69", "ecosystem": "vendor"}, {"name": "acronis cyber infrastructure", "fixed": ["5.3.1-53"], "affected": ">= 5.3.1, < 5.3.1-53", "ecosystem": "vendor"}, {"name": "acronis cyber infrastructure", "fixed": ["5.4.4-132"], "affected": ">= 5.4.4, < 5.4.4-132", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["acronis-cyber-infrastructure", "exploited", "infrastructure", "on-prem", "self-hosted"]
not_affected_if: ["default-passwords-changed"]
published_at: "2024-07-24T14:15:04+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-45249", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45249", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# acronis cyber infrastructure: Remote command execution due to use of default passwords

Acronis Cyber Infrastructure (ACI) ships with default passwords that an unauthenticated attacker can use to run commands remotely on the appliance. CISA lists it as actively exploited in the wild.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Acronis Cyber Infrastructure (ACI) affected ? fixed ?
- vendor:acronis cyber infrastructure affected < 5.0.1-61 fixed 5.0.1-61
- vendor:acronis cyber infrastructure affected >= 5.1.1, < 5.1.1-71 fixed 5.1.1-71
- vendor:acronis cyber infrastructure affected >= 5.2.1, < 5.2.1-69 fixed 5.2.1-69
- vendor:acronis cyber infrastructure affected >= 5.3.1, < 5.3.1-53 fixed 5.3.1-53
- vendor:acronis cyber infrastructure affected >= 5.4.4, < 5.4.4-132 fixed 5.4.4-132

## Fix

Apply mitigations per vendor instructions, or discontinue use of the product if mitigations are unavailable (per CISA required action). Change default passwords; exact steps unknown.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-45249
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2023-45249

## From the sources

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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_