CVE-2024-51138: Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2
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CRITICAL 9.8REMOTEUPGRADEUPGRADEUPGRADE
CVE-2024-51138 is a critical-severity flaw (CVSS 9.8) affecting vigor3912 firmware, vigor2620 firmware, vigorlte200 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2862/2926 3.9.9.5 and earlier; Vigor2133/2762/2832 3.9.9 and earlier; Vigor2135/2765/2766 4.4.5. and earlier; Vigor2865/2866/2927 4.4.5.3 and earlier; Vigor2962 4.3.2.8 and earlier; Vigor3912 4.3.6.1 and earlier; Vigor3910 4.4.3.1 and earlier a stack-based buffer overflow vulnerability has been identified in the URL parsing functionality o
Last updated 2026-07-05 · 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
draytek vigor3912 firmware UPGRADE
Affected: < 4.4.3.2
Fixed in: 4.4.3.2
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.
draytek vigor2620 firmware UPGRADE
Affected: < 3.9.9.1
Fixed in: 3.9.9.1
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.
draytek vigorlte200 firmware UPGRADE
Affected: < 3.9.9.1
Fixed in: 3.9.9.1
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.
draytek vigor2860 firmware UPGRADE
Affected: < 3.9.8.3
Fixed in: 3.9.8.3
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.
draytek vigor2925 firmware UPGRADE
Affected: < 3.9.8.3
Fixed in: 3.9.8.3
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.
draytek vigor2862 firmware UPGRADE
Affected: < 3.9.9.8
Fixed in: 3.9.9.8
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-2024-51138?
vigor3912 firmware: upgrade to 4.4.3.2; vigor2620 firmware: upgrade to 3.9.9.1; vigorlte200 firmware: upgrade to 3.9.9.1. Exact commands for each OS are on this page.
Is CVE-2024-51138 being exploited?
CVE-2024-51138 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-2024-51138 affect?
CVE-2024-51138 affects vigor3912 firmware, vigor2620 firmware, vigorlte200 firmware. Severity is critical (CVSS 9.8). Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2862/2926 3.9.9.5 and earlier; Vigor2133/2762/2832 3.9.9 and earlier; Vigor2135/2765/2766 4.4.5. and earlier; Vigor2865/2866/2927 4
How urgent is CVE-2024-51138?
Priority 55/100. Critical severity; Remotely exploitable, no login, no user action
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