CVE-2025-69783: A local attacker can bypass OpenEDR's 2.5.1.0 self-defense mechanism by renaming a malicious executable to mat

Routine

HIGH 7.8DOWNGRADE

CVE-2025-69783 is a high-severity flaw (CVSS 7.8) affecting openedr. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A local attacker can bypass OpenEDR's 2.5.1.0 self-defense mechanism by renaming a malicious executable to match a trusted process name (e.g., csrss.exe, edrsvc.exe, edrcon.exe). This allows unauthorized interaction with the OpenEDR kernel driver, granting access to privileged functionality such as configuration changes, process monitoring, and IOCTL communication that should be restricted to trusted components. While this issue alone does not di

Why this priority

High severity
Public exploit reference

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	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-250
Published	2026-03-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: xcitium

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

Am I affected?

Timeline

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

xcitium openedr DOWNGRADE

Affected: 2.5.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.5.1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.5.1.0 (Debian / Ubuntu)

apt-cache madison openedr sudo apt install openedr=<VERSION_BEFORE_2.5.1.0> sudo apt-mark hold openedr

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

dnf --showduplicates list openedr sudo dnf downgrade openedr-<VERSION_BEFORE_2.5.1.0> sudo dnf versionlock add openedr

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-2025-69783?

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

Is CVE-2025-69783 being exploited?

CVE-2025-69783 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-2025-69783 affect?

CVE-2025-69783 affects openedr. Severity is high (CVSS 7.8). A local attacker can bypass OpenEDR's 2.5.1.0 self-defense mechanism by renaming a malicious executable to match a trusted process name (e.g., csrss.exe, edrsvc.exe, edrcon.exe). This allows unauthorized interaction with the OpenEDR kernel

How urgent is CVE-2025-69783?

Priority 34/100. High severity; Public exploit reference

Related CVEs

CVE-2025-69784 HIGH 8.8 DOWNGRADE A local, non-privileged attacker can abuse a vulnerable IOCTL interface exposed by the OpenEDR 2.5.1.0 kernel

References

← Back to latest CVEs