CVE-2025-56551: An issue in DirectAdmin v1.680 allows unauthorized attackers to manipulate the page layout and replace the leg

This week

HIGH 8.2REMOTEDOWNGRADE

CVE-2025-56551 is a high-severity flaw (CVSS 8.2) affecting directadmin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in DirectAdmin v1.680 allows unauthorized attackers to manipulate the page layout and replace the legitimate login interface with arbitrary attacker-controlled content via supplying a crafted GET request.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-598
Published	2025-10-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: directadmin

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

Am I affected?

Timeline

2025-10-03 17:15 UTCPublished CVE record published
2026-06-17 09:42 UTCUpdated Record last modified

directadmin directadmin DOWNGRADE

Affected: 1.680

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.680

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.680 (Debian / Ubuntu)

apt-cache madison directadmin sudo apt install directadmin=<VERSION_BEFORE_1.680> sudo apt-mark hold directadmin

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

dnf --showduplicates list directadmin sudo dnf downgrade directadmin-<VERSION_BEFORE_1.680> sudo dnf versionlock add directadmin

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-2025-56551?

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

Is CVE-2025-56551 being exploited?

CVE-2025-56551 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-2025-56551 affect?

CVE-2025-56551 affects directadmin. Severity is high (CVSS 8.2). An issue in DirectAdmin v1.680 allows unauthorized attackers to manipulate the page layout and replace the legitimate login interface with arbitrary attacker-controlled content via supplying a crafted GET request.

How urgent is CVE-2025-56551?

Priority 46/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

← Back to latest CVEs