How severe is CVE-2023-45249?

CVE-2023-45249 has a CVSS 3.0 base score of 9.8 (CRITICAL). EPSS estimates a 53.3% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2023-45249: Acronis Cyber Infrastructure (ACI) Insecure Default

CISA Known Exploited Vulnerabilities

Acronis Cyber Infrastructure (ACI) Insecure Default Password Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2024-07-29

Remediation due

2024-08-19

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

CISA notes
https://security-advisory.acronis.com/advisories/SEC-6452; https://nvd.nist.gov/vuln/detail/CVE-2023-45249

Description

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.

Severity

CVSS 3.0 · CNA9.8 CRITICAL

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

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Exploitation Context

as of October 17, 2026

All KEV statistics→

CISA added CVE-2023-45249 to the KEV catalog 5 days after its CVE record was published. The median for entries added in 2024 is 21.5 days.
It is one of 2 Acronis entries in the CISA KEV catalog, and the only one added in 2024.
Its current EPSS score (53.3%) is higher than that of 51% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
Acronis	Acronis Acronis Cyber Infrastructure	unspecified to <5.0.1-61
Acronis	Acronis Acronis Cyber Infrastructure	unspecified to <5.1.1-71
Acronis	Acronis Acronis Cyber Infrastructure	unspecified to <5.2.1-69
Acronis	Acronis Acronis Cyber Infrastructure	unspecified to <5.3.1-53
Acronis	Acronis Acronis Cyber Infrastructure	unspecified to <5.4.4-132

References

2 Links

Vendor advisories

SEC-6452

Other references

https://www.securityweek.com/acronis-product-vulnerability-exploited-in-the-wild/

Record Details

Published

2024-07-24

Last updated

2025-10-21

Assigner (CNA)

Acronis

Credited to

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Tool categories

IAM Tools Application Security Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.

CVE-2023-45249