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CVE-2024-39226: GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750 v4.3.11, MT3000/MT2500/AXT18

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CRITICAL 9.8REMOTEMITIGATEMITIGATEMITIGATE

CVE-2024-39226 is a critical-severity flaw (CVSS 9.8) affecting mt6000 firmware, a1300 firmware, x300b firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750 v4.3.11, MT3000/MT2500/AXT1800/AX1800/A1300/X300B v4.5.16, XE300 v4.3.16, E750 v4.3.12, AP1300/S1300 v4.3.13, and XE3000/X3000 v4.4 were discovered to contain a vulnerability can be exploited to manipulate routers by passing malicious shell commands through the s2s API.

Why this priority

  • Critical severity
  • EPSS top 3%: very likely to be exploited
  • Public exploit reference
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance20.4% (top 3%)
CISA exploited listNo
WeaknessCWE-22, CWE-77
Published2024-08-06
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: gl-inet

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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

gl-inet mt6000 firmware MITIGATE
Affected: 4.5.8
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.5.8
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.
gl-inet a1300 firmware MITIGATE
Affected: 4.5.16
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.5.16
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.
gl-inet x300b firmware MITIGATE
Affected: 4.5.16
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.5.16
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.
gl-inet ax1800 firmware MITIGATE
Affected: 4.5.16
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.5.16
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.
gl-inet axt1800 firmware MITIGATE
Affected: 4.5.16
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.5.16
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.
gl-inet mt2500 firmware MITIGATE
Affected: 4.5.16
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.5.16
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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.
Fedora ELN · gram_grep · FIXED · 0.10.4-1.eln159 · FEDORA-2026-0808475f2a · source
sudo dnf upgrade --advisory=FEDORA-2026-0808475f2a
Fedora 46 · wesnoth · FIXED · 1.19.29-1.fc46 · FEDORA-2026-58f458e24e · source
sudo dnf upgrade --advisory=FEDORA-2026-58f458e24e
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-2024-39226?

mt6000 firmware: mitigate or apply the listed mitigation; a1300 firmware: mitigate or apply the listed mitigation; x300b firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-39226 being exploited?

CVE-2024-39226 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-2024-39226 affect?

CVE-2024-39226 affects mt6000 firmware, a1300 firmware, x300b firmware. Severity is critical (CVSS 9.8). GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750 v4.3.11, MT3000/MT2500/AXT1800/AX1800/A1300/X300B v4.5.16, XE300 v4.3.16, E750 v4.3.12, AP1300/S1300 v4.3.13, and XE3000/X3000 v4.4 were discovered to contain

How urgent is CVE-2024-39226?

Priority 69/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

References

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