CVE-2026-25760: Sliver is a command and control framework that uses a custom Wireguard netstack

Q: How do I fix CVE-2026-25760?

sliver: upgrade to 1.6.11. Exact commands for each OS are on this page.

Q: Is CVE-2026-25760 being exploited?

CVE-2026-25760 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-25760 affect?

CVE-2026-25760 affects sliver. Severity is medium (CVSS 6.5). Sliver is a command and control framework that uses a custom Wireguard netstack. Prior to 1.6.11, a path traversal in the website content subsystem lets an authenticated operator read arbitrary files on the Sliver server host. This is an au

Q: How urgent is CVE-2026-25760?

Priority 39/100. Public exploit reference

Routine

MEDIUM 6.5UPGRADE

CVE-2026-25760 is a medium-severity flaw (CVSS 6.5) affecting sliver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sliver is a command and control framework that uses a custom Wireguard netstack. Prior to 1.6.11, a path traversal in the website content subsystem lets an authenticated operator read arbitrary files on the Sliver server host. This is an authenticated path traversal / arbitrary file read issue, and it can expose credentials, configs, and keys. This vulnerability is fixed in 1.6.11.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 54%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-02-06
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: bishopfox

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-06 22:16 UTCPublished CVE record published
2026-06-17 10:25 UTCUpdated Record last modified

bishopfox sliver UPGRADE

Affected: < 1.6.11

Fixed in: 1.6.11

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.6.11 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sliver

Note

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

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-2026-25760?

sliver: upgrade to 1.6.11. Exact commands for each OS are on this page.

Is CVE-2026-25760 being exploited?

CVE-2026-25760 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-2026-25760 affect?

CVE-2026-25760 affects sliver. Severity is medium (CVSS 6.5). Sliver is a command and control framework that uses a custom Wireguard netstack. Prior to 1.6.11, a path traversal in the website content subsystem lets an authenticated operator read arbitrary files on the Sliver server host. This is an au

How urgent is CVE-2026-25760?

Priority 39/100. Public exploit reference

Software pages

WireGuard vulnerabilities

Related CVEs

CVE-2026-32941 MEDIUM 6.5 UPGRADE Sliver is a command and control framework that uses a custom Wireguard netstack
CVE-2026-29781 MEDIUM 6.5 UPGRADE Sliver is a command and control framework that uses a custom Wireguard netstack

References

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