CVE-2023-45249

KEVAcronis Cyber Infrastructure (ACI) Insecure Default Password Vulnerability

Description

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

CVSS 3.1 vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

PublishedJul 24, 2024

Last modifiedJun 17, 2026

Added to KEVJul 29, 2024

Remediation dueAug 19, 2024

References

security-advisory.acronis.com/advisories/SEC-6452Vendor Advisory
securityweek.com/acronis-product-vulnerability-exploited-in-the-wild/Press/Media Coverage
cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-45249Third Party AdvisoryUS Government Resource

0 recent articles mention this CVE

Risk assessment · Critical

Actively exploited. Patch immediately.

Exploitation: Confirmed in the wild (CISA KEV)
Federal remediation deadline: Overdue by 798 days
CVSS: 9.8 CRITICAL
EPSS (30-day exploit probability): 53.3% · top 1% of all CVEs
Weakness: CWE-1393
Attack vector: Network, remotely reachable
Preconditions: No privileges and no user interaction

Recommended actions

1.Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
2.Treat as emergency change: patch or isolate internet-facing instances first.
3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.

Assessment is derived automatically from the live signals above; verify against your own asset inventory.