CVE-2026-6408: Tanium addressed an information disclosure vulnerability in Tanium Server.

Routine

LOW 2.7UPGRADE

CVE-2026-6408 is a low-severity flaw (CVSS 2.7) affecting server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Tanium addressed an information disclosure vulnerability in Tanium Server.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	2.7 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-522
Published	2026-04-22
Last modified	2026-10-26

Publisher (CNA): Tanium · Vendor: tanium

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

Am I affected?

Timeline

2026-04-22 03:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

tanium server UPGRADE

Affected: >= 7.6.4.0 and < 7.6.4.2185 · >= 7.7.3.0 and < 7.7.3.8266 · >= 7.8.2.0 and < 7.8.2.1168

Fixed in: 7.6.4.2185, 7.7.3.8266, 7.8.2.1168

Safe to downgrade to: a release before 7.6.4.0

1. Check installed version

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

2. UPGRADE to 7.6.4.2185 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.6.4.0 (Debian / Ubuntu)

apt-cache madison server sudo apt install server=<VERSION_BEFORE_7.6.4.0> sudo apt-mark hold server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list server sudo dnf downgrade server-<VERSION_BEFORE_7.6.4.0> sudo dnf versionlock add server

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-2026-6408?

server: upgrade to 7.6.4.2185, 7.7.3.8266, 7.8.2.1168. Exact commands for each OS are on this page.

Is CVE-2026-6408 being exploited?

CVE-2026-6408 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-2026-6408 affect?

CVE-2026-6408 affects server. Severity is low (CVSS 2.7). Tanium addressed an information disclosure vulnerability in Tanium Server.

How urgent is CVE-2026-6408?

Priority 11/100. No elevated risk signals yet.

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References

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