CVE-2025-6217: PEAK-System Driver PCANFD_ADD_FILTERS Time-Of-Check Time-Of-Use Information Disclosure Vulnerability

Routine

LOW 2.5DOWNGRADE

CVE-2025-6217 is a low-severity flaw (CVSS 2.5) affecting device driver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PEAK-System Driver PCANFD_ADD_FILTERS Time-Of-Check Time-Of-Use Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of PEAK-System Driver. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the PCANFD_ADD_FILTERS IOCTL. The issue

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	2.5 (Low)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 99%)
CISA exploited list	No
Weakness	CWE-367
Published	2025-06-21
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: peak-system

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

Am I affected?

Timeline

2025-06-21 01:15 UTCPublished CVE record published
2026-06-17 10:01 UTCUpdated Record last modified

peak-system device driver DOWNGRADE

Affected: 8.18.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.18.0

1. Check installed version

apt-cache policy device-driver || rpm -q device-driver || device-driver --version

2. No fixed release: DOWNGRADE to a release before 8.18.0 (Debian / Ubuntu)

apt-cache madison device-driver sudo apt install device-driver=<VERSION_BEFORE_8.18.0> sudo apt-mark hold device-driver

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

dnf --showduplicates list device-driver sudo dnf downgrade device-driver-<VERSION_BEFORE_8.18.0> sudo dnf versionlock add device-driver

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-2025-6217?

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

Is CVE-2025-6217 being exploited?

CVE-2025-6217 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-2025-6217 affect?

CVE-2025-6217 affects device driver. Severity is low (CVSS 2.5). PEAK-System Driver PCANFD_ADD_FILTERS Time-Of-Check Time-Of-Use Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of PEAK-System Driver. An attacker m

How urgent is CVE-2025-6217?

Priority 9/100. No elevated risk signals yet.

References

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