CVE-2023-45249

Exp

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.

Published: 2024-07-24 Last update: 2025-10-22 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-45249 is rated Critical Active Threat (99.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 93.46%, 100th percentile). CISA KEV confirms active exploitation (added 2024-07-29) affecting Acronis / Cyber Infrastructure (ACI). a weakness (CWE-1393) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2023-45249

Name: Acronis Cyber Infrastructure (ACI) Insecure Default Password Vulnerability · CISA KEV detail

Exploit added: 2024-07-29

Action due: 2024-08-19

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

Exploit prediction scoring system (EPSS) score for CVE-2023-45249

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-01 93.28% 93.46% +0.19%
2 2026-03-28 93.14% 93.28% +0.14%
3 2026-03-09 — 93.14% —

Full EPSS history (32 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-45249

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-45249

Affected software / configurations for CVE-2023-45249

Vendor Product Version Raw CPE
acronis cyber_infrastructure < 5.0.1-61 cpe:2.3:a:acronis:cyber_infrastructure:*:*:*:*:*:*:*:*
acronis cyber_infrastructure >= 5.1.1, < 5.1.1-71 cpe:2.3:a:acronis:cyber_infrastructure:*:*:*:*:*:*:*:*
acronis cyber_infrastructure >= 5.2.1, < 5.2.1-69 cpe:2.3:a:acronis:cyber_infrastructure:*:*:*:*:*:*:*:*
acronis cyber_infrastructure >= 5.3.1, < 5.3.1-53 cpe:2.3:a:acronis:cyber_infrastructure:*:*:*:*:*:*:*:*
acronis cyber_infrastructure >= 5.4.4, < 5.4.4-132 cpe:2.3:a:acronis:cyber_infrastructure:*:*:*:*:*:*:*:*

References for CVE-2023-45249

cvelogic Threat Intelligence