CVE-2023-32349:
Version 00.07.03.4 and prior of Teltonika’s RUT router firmware contain a packet dump utility that contains p
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This month
HIGH 8.0UPGRADEUPGRADEUPGRADE
CVE-2023-32349 is a high-severity flaw (CVSS 8.0) affecting rut200 firmware, rut240 firmware, rut241 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Version 00.07.03.4 and prior of Teltonika’s RUT router firmware contain a packet dump utility that contains proper validation for filter parameters. However, variables for validation checks are stored in an external configuration file. An authenticated attacker could use an exposed UCI configuration utility to change these variables and enable malicious parameters in the dump utility, which could result in arbitrary code execution.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
Published CVE record published
Updated Record last modified
teltonika-networks rut200 firmware UPGRADE
Affected: <= 00.07.03.4
Fixed in: newer than 00.07.03.4
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.
teltonika-networks rut240 firmware UPGRADE
Affected: <= 00.07.03.4
Fixed in: newer than 00.07.03.4
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.
teltonika-networks rut241 firmware UPGRADE
Affected: <= 00.07.03.4
Fixed in: newer than 00.07.03.4
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.
teltonika-networks rut300 firmware UPGRADE
Affected: <= 00.07.03.4
Fixed in: newer than 00.07.03.4
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.
teltonika-networks rut360 firmware UPGRADE
Affected: <= 00.07.03.4
Fixed in: newer than 00.07.03.4
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.
teltonika-networks rut901 firmware UPGRADE
Affected: <= 00.07.03.4
Fixed in: newer than 00.07.03.4
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 sourceNVD · 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-2023-32349?
rut200 firmware: upgrade to newer than 00.07.03.4; rut240 firmware: upgrade to newer than 00.07.03.4; rut241 firmware: upgrade to newer than 00.07.03.4. Exact commands for each OS are on this page.
Is CVE-2023-32349 being exploited?
CVE-2023-32349 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-2023-32349 affect?
CVE-2023-32349 affects rut200 firmware, rut240 firmware, rut241 firmware. Severity is high (CVSS 8.0).
Version 00.07.03.4 and prior of Teltonika’s RUT router firmware contain a packet dump utility that contains proper validation for filter parameters. However, variables for validation checks are stored in an external configuration file. An
How urgent is CVE-2023-32349?
Priority 44/100. High severity
Related CVEs
CVE-2023-32350HIGH 8.0UPGRADEUPGRADE
Versions 00.07.00 through 00.07.03 of Teltonika’s RUT router firmware contain an operating system (OS) comman
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