CVE-2024-41590: Several CGI endpoints are vulnerable to buffer overflows, by authenticated users, because of missing bounds ch
35
Routine
HIGH 8.0UPGRADEUPGRADEUPGRADE
CVE-2024-41590 is a high-severity flaw (CVSS 8.0) affecting vigor2765 firmware, vigor2763 firmware, vigor2135 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Several CGI endpoints are vulnerable to buffer overflows, by authenticated users, because of missing bounds checking on parameters passed through POST requests to the strcpy function on DrayTek Vigor310 devices through 4.3.2.6.
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
draytek vigor2765 firmware UPGRADE
Affected: < 4.4.5.3
Fixed in: 4.4.5.3
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 vigor2763 firmware UPGRADE
Affected: < 4.4.5.3
Fixed in: 4.4.5.3
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 vigor2135 firmware UPGRADE
Affected: < 4.4.5.3
Fixed in: 4.4.5.3
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 vigor166 firmware UPGRADE
Affected: < 4.2.7
Fixed in: 4.2.7
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 vigor3912 firmware UPGRADE
Affected: < 4.3.6.1
Fixed in: 4.3.6.1
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 vigor1000b firmware UPGRADE
Affected: < 4.3.2.8 · >= 4.4.0.0 and < 4.4.3.1
Fixed in: 4.3.2.8, 4.4.3.1
Safe to downgrade to: a release before 4.4.0.0
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-2024-41590?
vigor2765 firmware: upgrade to 4.4.5.3; vigor2763 firmware: upgrade to 4.4.5.3; vigor2135 firmware: upgrade to 4.4.5.3. Exact commands for each OS are on this page.
Is CVE-2024-41590 being exploited?
CVE-2024-41590 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-2024-41590 affect?
CVE-2024-41590 affects vigor2765 firmware, vigor2763 firmware, vigor2135 firmware. Severity is high (CVSS 8.0). Several CGI endpoints are vulnerable to buffer overflows, by authenticated users, because of missing bounds checking on parameters passed through POST requests to the strcpy function on DrayTek Vigor310 devices through 4.3.2.6.
How urgent is CVE-2024-41590?
Priority 35/100. High severity
Related CVEs
CVE-2024-41596HIGH 8.0MITIGATEUPGRADE Buffer Overflow vulnerabilities exist in DrayTek Vigor310 devices through 4.3.2.6 (in the Vigor management UI)
CVE-2024-41594HIGH 7.5MITIGATEUPGRADE An issue in DrayTek Vigor310 devices through 4.3.2.6 allows an attacker to obtain sensitive information becaus
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