CVE-2025-69431: The ZSPACE Q2C NAS contains a vulnerability related to incorrect symbolic link following

Q: How do I fix CVE-2025-69431?

q2c firmware: upgrade to newer than 1.1.0210050. Exact commands for each OS are on this page.

Q: Is CVE-2025-69431 being exploited?

CVE-2025-69431 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-2025-69431 affect?

CVE-2025-69431 affects q2c firmware. Severity is medium (CVSS 6.1). The ZSPACE Q2C NAS contains a vulnerability related to incorrect symbolic link following. Attackers can format a USB drive to ext4, create a symbolic link to its root directory, insert the drive into the NAS device's slot, and then access t

Q: How urgent is CVE-2025-69431?

Priority 32/100. Public exploit reference

Routine

MEDIUM 6.1UPGRADE

CVE-2025-69431 is a medium-severity flaw (CVSS 6.1) affecting q2c firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The ZSPACE Q2C NAS contains a vulnerability related to incorrect symbolic link following. Attackers can format a USB drive to ext4, create a symbolic link to its root directory, insert the drive into the NAS device's slot, and then access the USB drive's directory mounted on the NAS using the Samba protocol. This allows them to obtain all files within the NAS system and tamper with those files.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-59
Published	2026-02-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: zspace

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

Am I affected?

Timeline

2026-02-03 18:16 UTCPublished CVE record published
2026-06-17 10:00 UTCUpdated Record last modified

zspace q2c firmware UPGRADE

Affected: <= 1.1.0210050

Fixed in: newer than 1.1.0210050

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.

Quick answers

How do I fix CVE-2025-69431?

q2c firmware: upgrade to newer than 1.1.0210050. Exact commands for each OS are on this page.

Is CVE-2025-69431 being exploited?

CVE-2025-69431 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-2025-69431 affect?

CVE-2025-69431 affects q2c firmware. Severity is medium (CVSS 6.1). The ZSPACE Q2C NAS contains a vulnerability related to incorrect symbolic link following. Attackers can format a USB drive to ext4, create a symbolic link to its root directory, insert the drive into the NAS device's slot, and then access t

How urgent is CVE-2025-69431?

Priority 32/100. Public exploit reference

Software pages

Samba vulnerabilities

References

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