CVE-2025-27724: A privilege escalation vulnerability exists in the login.php functionality of meddream MedDream PACS Premium 7

This month

CRITICAL 9.3DOWNGRADE

CVE-2025-27724 is a critical-severity flaw (CVSS 9.3) affecting pacs server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A privilege escalation vulnerability exists in the login.php functionality of meddream MedDream PACS Premium 7.3.3.840. A specially crafted .php file can lead to elevated capabilities. An attacker can upload a malicious file to trigger this vulnerability.

Why this priority

Critical severity
Public exploit reference

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

Risk facts

CVSS score	9.3 (Critical)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-284
Published	2025-07-28
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: meddream

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

Am I affected?

Timeline

2025-07-28 14:15 UTCPublished CVE record published
2026-06-17 09:04 UTCUpdated Record last modified

meddream pacs server DOWNGRADE

Affected: 7.3.2.840

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.3.2.840

1. Check installed version

apt-cache policy pacs-server || rpm -q pacs-server || pacs-server --version

2. No fixed release: DOWNGRADE to a release before 7.3.2.840 (Debian / Ubuntu)

apt-cache madison pacs-server sudo apt install pacs-server=<VERSION_BEFORE_7.3.2.840> sudo apt-mark hold pacs-server

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

dnf --showduplicates list pacs-server sudo dnf downgrade pacs-server-<VERSION_BEFORE_7.3.2.840> sudo dnf versionlock add pacs-server

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-2025-27724?

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

Is CVE-2025-27724 being exploited?

CVE-2025-27724 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-2025-27724 affect?

CVE-2025-27724 affects pacs server. Severity is critical (CVSS 9.3). A privilege escalation vulnerability exists in the login.php functionality of meddream MedDream PACS Premium 7.3.3.840. A specially crafted .php file can lead to elevated capabilities. An attacker can upload a malicious file to trigger this

How urgent is CVE-2025-27724?

Priority 49/100. Critical severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

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CVE-2025-3481 HIGH 7.8 UPGRADE MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
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References

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