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CVE-2025-41736: A low privileged remote attacker can upload a new or overwrite an existing python script by using a path trave

45
This month
HIGH 8.8UPGRADEUPGRADEUPGRADE

CVE-2025-41736 is a high-severity flaw (CVSS 8.8) affecting ewio2-m firmware, ewio2-m-bm firmware, ewio2-bm firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A low privileged remote attacker can upload a new or overwrite an existing python script by using a path traversal of the target filename in php resulting in a remote code execution.

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score8.8 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.8% (top 44%)
CISA exploited listNo
WeaknessCWE-35, CWE-22
Published2025-11-18
Last modified2026-10-18
Publisher (CNA): CERT VDE · Vendor: metz-connect

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Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

metz-connect ewio2-m firmware UPGRADE
Affected: < 2.2.0
Fixed in: 2.2.0
Safe to downgrade to: no unaffected older release
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.
metz-connect ewio2-m-bm firmware UPGRADE
Affected: < 2.2.0
Fixed in: 2.2.0
Safe to downgrade to: no unaffected older release
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.
metz-connect ewio2-bm firmware UPGRADE
Affected: < 2.2.0
Fixed in: 2.2.0
Safe to downgrade to: no unaffected older release
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-2025-41736?

ewio2-m firmware: upgrade to 2.2.0; ewio2-m-bm firmware: upgrade to 2.2.0; ewio2-bm firmware: upgrade to 2.2.0. Exact commands for each OS are on this page.

Is CVE-2025-41736 being exploited?

CVE-2025-41736 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-2025-41736 affect?

CVE-2025-41736 affects ewio2-m firmware, ewio2-m-bm firmware, ewio2-bm firmware. Severity is high (CVSS 8.8). A low privileged remote attacker can upload a new or overwrite an existing python script by using a path traversal of the target filename in php resulting in a remote code execution.

How urgent is CVE-2025-41736?

Priority 45/100. High severity

Software pages

PHP vulnerabilities · Python vulnerabilities

Related CVEs

References

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