CVE-2015-3976: Cross-site scripting (XSS) vulnerability in GE Multilink ML810/3000/3100 series switch 5.2.0 and earlier, and
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Routine
MEDIUM 5.4MITIGATEUPGRADEUPGRADE
CVE-2015-3976 is a medium-severity flaw (CVSS 5.4) affecting multilink ml810 firmware, multilink ml3000 firmware, multilink ml3100 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Cross-site scripting (XSS) vulnerability in GE Multilink ML810/3000/3100 series switch 5.2.0 and earlier, and GE Multilink ML800/1200/1600/2400 4.2.1 and earlier.
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
ge multilink ml810 firmware MITIGATE
Affected: 5.2.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 5.2.0
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.
ge multilink ml3000 firmware UPGRADE
Affected: <= 5.2.0
Fixed in: newer than 5.2.0
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.
ge multilink ml3100 firmware UPGRADE
Affected: <= 5.2.0
Fixed in: newer than 5.2.0
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.
ge multilink ml800 firmware MITIGATE
Affected: 4.2.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.2.1
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.
ge multilink ml1200 firmware MITIGATE
Affected: 4.2.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.2.1
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.
ge multilink ml1600 firmware MITIGATE
Affected: 4.2.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.2.1
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-2015-3976?
multilink ml810 firmware: mitigate or apply the listed mitigation; multilink ml3000 firmware: upgrade to newer than 5.2.0; multilink ml3100 firmware: upgrade to newer than 5.2.0. Exact commands for each OS are on this page.
Is CVE-2015-3976 being exploited?
CVE-2015-3976 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-2015-3976 affect?
CVE-2015-3976 affects multilink ml810 firmware, multilink ml3000 firmware, multilink ml3100 firmware. Severity is medium (CVSS 5.4). Cross-site scripting (XSS) vulnerability in GE Multilink ML810/3000/3100 series switch 5.2.0 and earlier, and GE Multilink ML800/1200/1600/2400 4.2.1 and earlier.
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