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CVE-2022-45451· NVD / CVE Program· CNA Acronis

Local privilege escalation due to insecure driver communication port permissions.

Local privilege escalation due to insecure driver communication port permissions. The following products are affected: Acronis Cyber Protect Home Office (Windows) before build 40173, Acronis Agent (Windows) before build 30600, Acronis Cyber Protect 15 (Windows) before build 30984.

HighCVSS 7.8 · v3.1—Proof of concept Fix available
Published
Aug 31, 2023
Updated
Jun 17, 2026
EPSS
0.5% · 42th percentile
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Report tools

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Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · Acronis
8.8
1.0 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
acronisagent
acroniscyber protect
acroniscyber protect home office

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • acronis agentbefore c22.10
  • acronis cyber protect15
  • acronis cyber protect home officebefore 40173

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Acronis). Independent of NVD's CPE analysis and usually ahead of it.

  • Acronis Acronis Agent

    • unspecified and later · before 30600affected · semver

  • Acronis Acronis Cyber Protect 15

    • unspecified and later · before 30984affected · semver

  • Acronis Acronis Cyber Protect Home Office

    • unspecified and later · before 40173affected · semver

Same product

acronis: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-28727Local privilege escalation due to insecure Unix socket permissions.
    31Monitor
  • CVE-2023-44209Local privilege escalation due to improper soft link handling.
    31Monitor
  • CVE-2023-41744Local privilege escalation due to unrestricted loading of unsigned libraries.
    31Monitor
  • CVE-2023-41743Local privilege escalation due to insecure driver communication port permissions.
    31Monitor
  • CVE-2022-45452Local privilege escalation due to insecure folder permissions.
    31Monitor
  • CVE-2022-45455Local privilege escalation due to incomplete uninstallation cleanup.
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Acronis Acronis Agent30600Vendor (CNA)
Acronis Acronis Cyber Protect 1530984Vendor (CNA)
Acronis Acronis Cyber Protect Home Office40173Vendor (CNA)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:182022-12-15

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-259 d
  2. Published
  3. TodayOct 8, 2026+1134 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-269 · Improper Privilege Management

CVSS vector

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

nvd-primary

Root cause

To simplify setup, a service account is granted broad, cluster-wide permissions. The principle of least privilege is skipped during installation.

The bug in code

The whole CWE-269 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

yaml
kind: ClusterRolerules:  - apiGroups: ["*"]    resources: ["*"]    verbs: ["*"]

Fixed

yaml
kind: Rolemetadata:  namespace: lodos-systemrules:  - apiGroups: ["apps"]    resources: ["deployments"]    verbs: ["get", "list", "update"]

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records