PatchTheCVECVE-2024-41591: DrayTek Vigor3910 devices through 4.3.2.6 allow unauthenticated DOM-based reflected XSS.
26
Routine
MEDIUM 6.1MITIGATEUPGRADEUPGRADE
CVE-2024-41591 is a medium-severity flaw (CVSS 6.1) affecting vigor2620 firmware, vigor2915 firmware, vigor2866 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
DrayTek Vigor3910 devices through 4.3.2.6 allow unauthenticated DOM-based reflected XSS.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.1 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.3% (top 80%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2024-10-03 |
| Last modified | 2026-06-17 |
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 vigor2620 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
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 vigor2915 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 vigor2866 firmware UPGRADE
Affected: < 4.4.5.2
Fixed in: 4.4.5.2
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 vigor2766 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 vigor2865 firmware UPGRADE
Affected: < 4.4.5.2
Fixed in: 4.4.5.2
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 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.
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.
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-2024-41591?
vigor2620 firmware: mitigate or apply the listed mitigation; vigor2915 firmware: upgrade to 4.4.5.3; vigor2866 firmware: upgrade to 4.4.5.2. Exact commands for each OS are on this page.
Is CVE-2024-41591 being exploited?
CVE-2024-41591 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-2024-41591 affect?
CVE-2024-41591 affects vigor2620 firmware, vigor2915 firmware, vigor2866 firmware. Severity is medium (CVSS 6.1). DrayTek Vigor3910 devices through 4.3.2.6 allow unauthenticated DOM-based reflected XSS.
How urgent is CVE-2024-41591?
Priority 26/100. No elevated risk signals yet.
Related CVEs
- CVE-2024-51139 CRITICAL 9.8 UPGRADE UPGRADE Buffer Overflow vulnerability in Vigor2620/LTE200 3.9.8.9 and earlier and Vigor2860/2925 3.9.8 and earlier and
- CVE-2024-51138 CRITICAL 9.8 UPGRADE UPGRADE Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2
- CVE-2024-41340 HIGH 8.4 UPGRADE UPGRADE An issue in Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor 2620/LTE200 prior to v3.9.8.8, Vigor 2860/29
- CVE-2024-41339 HIGH 8.8 UPGRADE UPGRADE An issue in the CGI endpoint used to upload configurations in Draytek devices Vigor 165/166 prior to v4.2.6 ,
- CVE-2024-41338 HIGH 7.5 UPGRADE UPGRADE A NULL pointer dereference in Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor 2620/LTE200 prior to v3.9.