CVE-2020-24552 is a medium-severity flaw (CVSS 5.5) affecting se5901 firmware, se5901b firmware, se5904d firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Atop Technology industrial 3G/4G gateway contains Command Injection vulnerability. Due to insufficient input validation, the device's web management interface allows attackers to inject specific code and execute system commands without privilege.
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
atoptechnology se5901 firmware UPGRADE
Affected: >= 1.18 and <= 1.40
Fixed in: newer than 1.40
Safe to downgrade to: a release before 1.18
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.
atoptechnology se5901b firmware UPGRADE
Affected: >= 1.18 and <= 1.40
Fixed in: newer than 1.40
Safe to downgrade to: a release before 1.18
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.
atoptechnology se5904d firmware UPGRADE
Affected: >= 1.18 and <= 1.40
Fixed in: newer than 1.40
Safe to downgrade to: a release before 1.18
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.
atoptechnology se5908 firmware UPGRADE
Affected: >= 1.18 and <= 1.40
Fixed in: newer than 1.40
Safe to downgrade to: a release before 1.18
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.
atoptechnology se5908a firmware UPGRADE
Affected: >= 1.18 and <= 1.40
Fixed in: newer than 1.40
Safe to downgrade to: a release before 1.18
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.
atoptechnology se5916 firmware UPGRADE
Affected: >= 1.18 and <= 1.40
Fixed in: newer than 1.40
Safe to downgrade to: a release before 1.18
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-2020-24552?
se5901 firmware: upgrade to newer than 1.40; se5901b firmware: upgrade to newer than 1.40; se5904d firmware: upgrade to newer than 1.40. Exact commands for each OS are on this page.
Is CVE-2020-24552 being exploited?
CVE-2020-24552 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-2020-24552 affect?
CVE-2020-24552 affects se5901 firmware, se5901b firmware, se5904d firmware. Severity is medium (CVSS 5.5). Atop Technology industrial 3G/4G gateway contains Command Injection vulnerability. Due to insufficient input validation, the device's web management interface allows attackers to inject specific code and execute system commands without priv
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