Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2023-45249

Acronis Cyber Infrastructure

Acronis Cyber Infrastructure · affected before 5.0.1-61

Watch CVE-2023-45249 Browse KEV feed
Severity
CVSS 9.8 · Critical
Confidence
Confirmed
Exploit status
Exploited in the wild
EPSS
53.3%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2023-45249 is an unauthenticated vulnerability affecting Acronis Cyber Infrastructure. Remote command execution due to use of default passwords. The following products are affected: Acronis Cyber Infrastructure...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV.

Who is affected?

Acronis Cyber Infrastructure affected before 5.0.1-61.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Remote command execution due to use of default passwords

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.

acronis Affected
cyber_infrastructure
Before 5.0.1-61 Before 5.1.1-71 Before 5.2.1-69 Before 5.3.1-53 Before 5.4.4-132
Acronis Affected
Acronis Cyber Infrastructure
Before 5.0.1-61 Before 5.1.1-71 Before 5.2.1-69 Before 5.3.1-53 Before 5.4.4-132
View vendor advisory (opens in new tab)
Published
24 Jul 2024
Exploitation Reported
29 Jul 2024
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

nuclei_scanner cisa nessus_scanner windows metasploit metasploit_scanner

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 29 Jul 2024

A trusted third party reported exploitation.

Proof of concept available

Nuclei Templates

Recorded 28 Apr 2025

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
CISA First 2024-07-29 00:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2023/CVE-2023-45249.yaml 01 Jun 2026
Metasploit https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/acronis_cyber_infra_cve_2023_45249.rb 28 Apr 2025
Nessus https://www.tenable.com/plugins/nessus/206166 23 Aug 2024

Risk and context

Severity, weaknesses, and research context

CVSS v3.0

9.8 Critical

Potential damage if exploited. Separate from whether attackers are using it.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

53.3%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Use of Default Password CWE-1393

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

Acronis Cyber Infrastructure - Default Password

nuclei · Created Unknown

acronis_cyber_infra_cve_2023_45249

metasploit · Created Unknown

Metasploit module for CVE-2023-45249

Timeline

From disclosure to observed exploitation

  1. 15:34 UTC

    Nuclei template available

    Scanner coverage available

  2. 15:02 UTC

    Metasploit module available

    Exploit module available

  3. 15:02 UTC

    Public PoC available

    Public proof-of-concept code published

  4. 19:56 UTC

    Nessus plugin available

    Scanner coverage available

  5. 00:00 UTC

    Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  6. 14:03 UTC

    CVE published

    Vulnerability disclosed publicly

  7. 21:47 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

Start 14-day Pro trial Read API docs
  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2023-45249

Sample API response 
{
  "cve_id": "CVE-2023-45249",
  "confidence": "Confirmed",
  "cvss_score": 9.8,
  "cvss_estimated": false,
  "epss_score": 0.53255,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}