CVE-2026-28517: openDCIM version 23.04, through commit 4467e9c4, contains an OS command injection vulnerability in report_netw

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2026-28517 is a critical-severity flaw (CVSS 9.8) affecting opendcim. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

openDCIM version 23.04, through commit 4467e9c4, contains an OS command injection vulnerability in report_network_map.php. The application retrieves the 'dot' configuration parameter from the database and passes it directly to exec() without validation or sanitization. If an attacker can modify the fac_Config.dot value, arbitrary commands may be executed in the context of the web server process.

Why this priority

Critical severity
EPSS top 6%: very likely to be exploited
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	6.3% (top 6%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-02-27
Last modified	2026-07-14

Publisher (CNA): VulnCheck · Vendor: opendcim

Last updated 2026-07-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-27 23:16 UTCPublished CVE record published
2026-07-14 19:16 UTCUpdated Record last modified

opendcim opendcim DOWNGRADE

Affected: 23.04

Fixed in: no fixed release known

Safe to downgrade to: a release before 23.04

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 23.04 (Debian / Ubuntu)

apt-cache madison opendcim sudo apt install opendcim=<VERSION_BEFORE_23.04> sudo apt-mark hold opendcim

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

dnf --showduplicates list opendcim sudo dnf downgrade opendcim-<VERSION_BEFORE_23.04> sudo dnf versionlock add opendcim

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · python-configargparse · FIXED · 1.9.0-1.fc46 · FEDORA-2026-3ab7c44443 · source

sudo dnf upgrade --advisory=FEDORA-2026-3ab7c44443

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: chocapikk.com/posts/2026/opendcim-sqli-to-rce/
Metasploit: openDCIM install.php SQL Injection to RCE

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-2026-28517?

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

Is CVE-2026-28517 being exploited?

CVE-2026-28517 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-2026-28517 affect?

CVE-2026-28517 affects opendcim. Severity is critical (CVSS 9.8). openDCIM version 23.04, through commit 4467e9c4, contains an OS command injection vulnerability in report_network_map.php. The application retrieves the 'dot' configuration parameter from the database and passes it directly to exec() withou

How urgent is CVE-2026-28517?

Priority 71/100. Critical severity; EPSS top 6%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2026-28516 HIGH 8.8 DOWNGRADE openDCIM version 23.04, through commit 4467e9c4, contains a SQL injection vulnerability in Config::UpdateParam
CVE-2026-28515 HIGH 8.8 DOWNGRADE openDCIM version 23.04, through commit 4467e9c4, contains a missing authorization vulnerability in install.php

References

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