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CVE-2022-1359: The affected On-Premise cnMaestro is vulnerable to an arbitrary file-write through improper limitation of a pa

36
Routine
MEDIUM 5.7MITIGATE

CVE-2022-1359 is a medium-severity flaw (CVSS 5.7) affecting cnmaestro. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The affected On-Premise cnMaestro is vulnerable to an arbitrary file-write through improper limitation of a pathname to a restricted directory inside a specific route. If an attacker supplied path traversal charters (../) as part of a filename, the server will save the file where the attacker chooses. This could allow an attacker to write any data to any file in the server.

Why this priority

  • No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score5.7 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionRequired
EPSS exploit chance1.0% (top 38%)
CISA exploited listNo
WeaknessCWE-78, CWE-22
Published2022-05-17
Last modified2026-06-17
Publisher (CNA): ICS-CERT · Vendor: cambiumnetworks

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

cambiumnetworks cnmaestro MITIGATE
Affected: 2.4.2 · 3.0.0 · 3.0.3
Fixed in: no fixed release known
Safe to downgrade to: a release before 2.4.2
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-1359?

cnmaestro: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-1359 being exploited?

CVE-2022-1359 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-1359 affect?

CVE-2022-1359 affects cnmaestro. Severity is medium (CVSS 5.7). The affected On-Premise cnMaestro is vulnerable to an arbitrary file-write through improper limitation of a pathname to a restricted directory inside a specific route. If an attacker supplied path traversal charters (../) as part of a filen

How urgent is CVE-2022-1359?

Priority 36/100. No elevated risk signals yet.

Related CVEs

References

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