Security Digest · Vulnerability record · Known exploited
CVE-2023-45249: Acronis Cyber Infrastructure (ACI) Insecure Default Password Vulnerability
Exploited in the wild (CISA KEV). Remote command execution due to use of default passwords.
CISA KEV · added 2024-07-29 CVSS 9.8 Critical EPSS 53.3% · p99
Should you act?
Exploited: patch now if you run it
CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Yes, if you run Acronis Cyber Infrastructure (ACI). CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-07-29, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-08-19; treat that as the outer limit, not the target.
- EPSS 53.3%, percentile 99: FIRST’s model estimates a 53.3% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
What it is
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.
CISA’s summary
Acronis Cyber Infrastructure (ACI) allows an unauthenticated user to execute commands remotely due to the use of default passwords.
Weakness type: CWE-1393.
Product: Acronis Cyber Infrastructure (ACI) · Assigned by: Acronis · Published: 2024-07-24
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Acronis | Acronis Cyber Infrastructure | unspecified < 5.0.1-61 |
| Acronis | Acronis Cyber Infrastructure | unspecified < 5.1.1-71 |
| Acronis | Acronis Cyber Infrastructure | unspecified < 5.2.1-69 |
| Acronis | Acronis Cyber Infrastructure | unspecified < 5.3.1-53 |
| Acronis | Acronis Cyber Infrastructure | unspecified < 5.4.4-132 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| Acronis | 3.0 | 9.8 Critical | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: added 2024-07-29; federal due date 2024-08-19. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 53.25% probability of exploitation activity in the next 30 days; percentile 99.
Timeline
- — CVE record published by Acronis
- — Added to CISA’s Known Exploited Vulnerabilities catalog
- — CISA remediation deadline for US federal agencies
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- SEC-6452 security-advisory.acronis.com
Vulnerability records
- CVE.org record CVE-2023-45249 cve.org
- NVD entry CVE-2023-45249 nvd.nist.gov
Government
Other references from the CVE record and advisory
- securityweek.com securityweek.com
All exploited Acronis vulnerabilities · Today’s Security Digest