CVE-2023-45249

Q: How do I fix CVE-2023-45249?

Upgrade cyber infrastructure to 5.4.4-132 or later.

Q: Is CVE-2023-45249 being actively exploited?

Yes. CVE-2023-45249 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2024-08-19. Treat it as a priority whatever its CVSS score says.

Q: How severe is CVE-2023-45249?

CVE-2023-45249 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2023-45249 affect?

Published advisories record a fix for cyber infrastructure (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICALCISA KEVEPSS 99th pctl

9.8

CVSS v3

NVD

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.

CWE-1393

How to fix

Remediation Available

cyber infrastructureNVD

Affected:>= 5.4.4, < 5.4.4-132Fixed in:5.4.4-132CVE-2023-45249derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

53.25%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Acronis Cyber Infrastructure (ACI) Insecure Default Password Vulnerability

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

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

Remediation due: 2024-08-19

References

Vendor Advisory1

security-advisory.acronis.com

Third-Party Advisory1

cisa.gov

Press / Media1

securityweek.com

Related Vulnerabilities

Other CWE-1393 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-29021	Critical	9.0	20%	-	-
CVE-2025-26793	Unscored	-	2.3%	-	-
CVE-2024-48987	Medium	6.6	1.0%	-	Fix
CVE-2026-2635	High	7.3	1.0%	-	-
CVE-2023-25131	Critical	9.4	1.0%	-	-
CVE-2024-43659	High	7.2	0.8%	-	-

Common questions

How do I fix CVE-2023-45249?

Upgrade cyber infrastructure to 5.4.4-132 or later.

Is CVE-2023-45249 being actively exploited?

Yes. CVE-2023-45249 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2024-08-19. Treat it as a priority whatever its CVSS score says.

How severe is CVE-2023-45249?

CVE-2023-45249 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2023-45249 affect?

Published advisories record a fix for cyber infrastructure (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-22.