Acronis Cyber Protect Home Office: Incomplete Cleanup
CVE-2022-45455 is a high-severity incomplete cleanup vulnerability in Acronis Cyber Protect Home Office from Acronis, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version 40107 as the first without the flaw, so updating Acronis Cyber Protect Home Office to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.15% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Acronis Cyber Protect Home Office to 40107 or a later version.
- Update Acronis Agent to 30025 or a later version.
- Update Acronis Cyber Protect 15 to 30984 or a later version.
- Read the advisory on security-advisory.acronis.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Acronis | Acronis Cyber Protect Home Office | before 40107 | 40107 |
| Acronis | Acronis Agent | before 30025 | 30025 |
| Acronis | Acronis Cyber Protect 15 | before 30984 | 30984 |
| Acronis | Agent | before c22.07 | c22.07 |
| Acronis | Cyber Protect | 15 | Not stated |
| Acronis | Cyber Protect Home Office | Not specified in the record | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.8 | High | NVD |
| CVSS 3.0 | 6.6 | Medium | CNA (acronis.com) |
Official description
Local privilege escalation due to incomplete uninstallation cleanup. The following products are affected: Acronis Cyber Protect Home Office (Windows) before build 40107, Acronis Agent (Windows) before build 30025, Acronis Cyber Protect 15 (Windows) before build 30984.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Incomplete Cleanup
The product does not properly clean up and remove temporary or supporting resources after they have been used.
How developers prevent this class of flaw
- Temporary files and other supporting resources should be deleted/released immediately after they are no longer needed.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Acronis Cyber Protect Home Office
- 7.8 High severity
- 9.1 Critical severity
- 7.5 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
Recent Incomplete Cleanup vulnerabilities
- 9.8 Critical severity
- 8.4 High severity
- 7.5 High severity
- 7.0 High severity
- 7.5 High severity
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