Security readout for executives and security teams
Plain-English summary
CVE-2023-45249 is a critical Acronis Cyber Infrastructure flaw caused by default passwords that can allow remote command execution. For executives, this is urgent because it can give an unauthenticated network attacker full control of affected infrastructure and is listed by CISA as known exploited.
Executive priority
Prioritize immediately. This is a critical, remotely exploitable infrastructure vulnerability with confirmed KEV status. Leadership should require rapid asset discovery, upgrade completion, exposure reduction, and post-remediation validation.
Technical view
The issue affects Acronis Cyber Infrastructure builds before 5.0.1-61, 5.1.1-71, 5.2.1-69, 5.3.1-53, and 5.4.4-132. CVSS 9.8 indicates network access, low complexity, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to organizations running Acronis Cyber Infrastructure on affected pre-fixed builds. Internet-facing or broadly reachable management or infrastructure interfaces should be treated as highest concern. The bundle does not identify affected CPEs or specific deployment patterns.
Exploitation context
Active exploitation is supported by CISA KEV status and the cited SecurityWeek report. The provided sources do not include exploit mechanics, attacker tooling, or indicators. Treat this as a confirmed exploited vulnerability without assuming details beyond the public record.
Researcher notes
The source bundle establishes affected product, fixed build thresholds, CVSS, CWE-1393, and KEV status. It does not provide protocol details, vulnerable component names, exploit prerequisites beyond CVSS, or indicators of compromise. Avoid extrapolating beyond ACI and the listed builds.
Mitigation direction
- Inventory all Acronis Cyber Infrastructure deployments and record exact build numbers.
- Upgrade affected branches to the listed fixed builds or later vendor-supported builds.
- Review Acronis SEC-6452 for branch-specific vendor guidance.
- Remove or rotate any default credentials where vendor procedures require it.
- Restrict network access to Acronis administrative interfaces until remediation is complete.
Validation and detection
- Confirm each ACI instance is at or above the fixed build for its branch.
- Check whether any ACI administrative interface is reachable from untrusted networks.
- Review authentication and administrative logs for unexpected access or command activity.
- Track CVE-2023-45249 against CISA KEV remediation deadlines if applicable.
- Document remediation evidence for each affected asset.
Public sources used
Michael Williams reviewed this cited source version on .
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-1393: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-45249 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.0)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
9.8CriticalVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- SEC-6452CVE reference · vendor-advisory
- https://www.securityweek.com/acronis-product-vulnerability-exploited-in-the-wild/CVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-45249CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use of Default Password
Use of Default Password represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.