Local privilege escalation via unsigned library loading
Published May 18, 2023 · Updated Jan 22, 2025
Improper signature verification in Acronis Cyber Protect Home Office before build 40208 allows local users to elevate privileges. The affected Windows library loader accepts unsigned code without verifying its cryptographic signature before loading it. Acronis has not identified the loader, library path, or triggering operation; exploitation requires existing low-privileged local access and grants code execution at higher privilege.
Summary
What happened
Improper signature verification in Acronis Cyber Protect Home Office before build 40208 allows local users to elevate privileges. The affected Windows library loader accepts unsigned code without verifying its cryptographic signature before loading it. Acronis has not identified the loader, library path, or triggering operation; exploitation requires existing low-privileged local access and grants code execution at higher privilege.
The record
- CVE
- CVE-2022-4418
- Published
- May 18, 2023
- Updated
- Jan 22, 2025
- Vendor
- Acronis
- Product
- Acronis Cyber Protect Home Office
- Classifications
- CWE-347, T1574
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 18, 2023CVE publishedPublication date reported by the CVE source.
- Jan 22, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <40208
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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