CVE-2026-8108: The installation of Fuji Tellus adds a driver to the kernel which grants all users read and write permissions.

Routine

HIGH 7.8DOWNGRADE

CVE-2026-8108 is a high-severity flaw (CVSS 7.8) affecting tellus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The installation of Fuji Tellus adds a driver to the kernel which grants all users read and write permissions.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 96%)
CISA exploited list	No
Weakness	CWE-749
Published	2026-05-12
Last modified	2026-10-26

Publisher (CNA): ICS-CERT · Vendor: fujielectric

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-12 23:16 UTCPublished CVE record published
2026-10-26 18:10 UTCUpdated Record last modified

fujielectric tellus DOWNGRADE

Affected: 5.0.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0.2.0

1. Check installed version

apt-cache policy tellus || rpm -q tellus || tellus --version

2. No fixed release: DOWNGRADE to a release before 5.0.2.0 (Debian / Ubuntu)

apt-cache madison tellus sudo apt install tellus=<VERSION_BEFORE_5.0.2.0> sudo apt-mark hold tellus

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list tellus sudo dnf downgrade tellus-<VERSION_BEFORE_5.0.2.0> sudo dnf versionlock add tellus

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-8108?

tellus: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-8108 being exploited?

CVE-2026-8108 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-2026-8108 affect?

CVE-2026-8108 affects tellus. Severity is high (CVSS 7.8). The installation of Fuji Tellus adds a driver to the kernel which grants all users read and write permissions.

How urgent is CVE-2026-8108?

Priority 28/100. High severity

References

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