Local privilege escalation due to unrestricted loading of unsigned libraries
Noroxi assessment
Priority: Monitor (action score 31/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.16% (FIRST EPSS).
- 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.
- According to the record, no fixed version is available yet.
Low priority for now. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
Local privilege escalation due to unrestricted loading of unsigned libraries. The following products are affected: Acronis Cyber Protect Home Office (macOS) before build 39605, Acronis True Image 2021 (macOS) before build 39287
- Published
- Feb 4, 2022
- Updated
- Jun 17, 2026
- EPSS
- 0.1% · 4th percentile
- CWE
- CWE-347
Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.1%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| acronis | true image | cpe:2.3:a:acronis:true_image |
| acronis | cyber protect home office | cpe:2.3:a:acronis:cyber_protect_home_office |
| apple | macos | cpe:2.3:o:apple:macos |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- acronis cyber protect home officeall versions
- acronis true image2021
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 Cyber Protect Home Office
- unspecified and later · before 39605affected
Acronis Acronis True Image 2021
- unspecified and later · before 39287affected
Same product
acronis: all recordsOther highest-scoring records for the same primary product.
- CVE-2020-25736Acronis True Image 2019 update 1 through 2021 update 1 on macOS allows local privilege escalation due to an insecure XPC service configurati40Plan
- CVE-2017-3219Acronis True Image up to and including version 2017 Build 8053 performs software updates using HTTP.35Monitor
- CVE-2021-44204Local privilege escalation via named pipe due to improper access control checks31Monitor
Published before and after this one in the same product
- ← EarlierCVE-2021-44206Feb 4, 2022 · Local privilege escalation due to DLL hijacking vulnerability in Acronis Media Builder service29Monitor
- ← EarlierCVE-2022-24114Feb 4, 2022 · Local privilege escalation due to race condition on application startup28Monitor
- Later →CVE-2026-27774Apr 2, 2026 · Local privilege escalation due to DLL hijacking vulnerability.26Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
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.
No dated events beyond publication.
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 researchersFinders, 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-347 · Improper Verification of Cryptographic SignatureCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Root cause
The verifier takes the algorithm to verify with from the token’s own header. Untrusted data ends up deciding its own verification rule.
The bug in code
The whole CWE-347 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
const claims = jwt.verify(token, publicKey);Fixed
const claims = jwt.verify(token, publicKey, {
algorithms: ["RS256"],
issuer: "https://id.example.com",
audience: "portal",
});Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.