CVE-2025-3945: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in Tridium Ni

Routine

HIGH 7.2DOWNGRADEDOWNGRADE

CVE-2025-3945 is a high-severity flaw (CVSS 7.2) affecting niagara, niagara enterprise security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in Tridium Niagara Framework on QNX, Tridium Niagara Enterprise Security on QNX allows Command Delimiters. This issue affects Niagara Framework: before 4.14.2, before 4.15.1, before 4.10.11; Niagara Enterprise Security: before 4.14.2, before 4.15.1, before 4.10.11. Tridium recommends upgrading to Niagara Framework and Enterprise Security versions 4.14

Why this priority

High severity

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

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-88
Published	2025-05-22
Last modified	2026-06-17

Publisher (CNA): Honeywell International Inc. · Vendor: tridium

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

Am I affected?

Timeline

2025-05-22 13:15 UTCPublished CVE record published
2026-06-17 09:20 UTCUpdated Record last modified

tridium niagara DOWNGRADE

Affected: 4.10u10 · 4.14u1 · 4.15

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.10u10

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.10u10 (Debian / Ubuntu)

apt-cache madison niagara sudo apt install niagara=<VERSION_BEFORE_4.10u10> sudo apt-mark hold niagara

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

dnf --showduplicates list niagara sudo dnf downgrade niagara-<VERSION_BEFORE_4.10u10> sudo dnf versionlock add niagara

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.

tridium niagara enterprise security DOWNGRADE

Affected: 4.10u10 · 4.14u1 · 4.15

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.10u10

1. Check installed version

apt-cache policy niagara-enterprise-security || rpm -q niagara-enterprise-security || niagara-enterprise-security --version

2. No fixed release: DOWNGRADE to a release before 4.10u10 (Debian / Ubuntu)

apt-cache madison niagara-enterprise-security sudo apt install niagara-enterprise-security=<VERSION_BEFORE_4.10u10> sudo apt-mark hold niagara-enterprise-security

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

dnf --showduplicates list niagara-enterprise-security sudo dnf downgrade niagara-enterprise-security-<VERSION_BEFORE_4.10u10> sudo dnf versionlock add niagara-enterprise-security

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-2025-3945?

niagara: downgrade or apply the listed mitigation; niagara enterprise security: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-3945 being exploited?

CVE-2025-3945 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-2025-3945 affect?

CVE-2025-3945 affects niagara, niagara enterprise security. Severity is high (CVSS 7.2). Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in Tridium Niagara Framework on QNX, Tridium Niagara Enterprise Security on QNX allows Command Delimiters. This issue affects Niagara Framework

How urgent is CVE-2025-3945?

Priority 38/100. High severity

Related CVEs

CVE-2025-3944 HIGH 7.2 DOWNGRADE DOWNGRADE Incorrect Permission Assignment for Critical Resource vulnerability in Tridium Niagara Framework on QNX, Tridi
CVE-2025-3943 MEDIUM 4.1 DOWNGRADE DOWNGRADE Use of GET Request Method With Sensitive Query Strings vulnerability in Tridium Niagara Framework on Windows,
CVE-2025-3942 MEDIUM 4.3 DOWNGRADE DOWNGRADE Improper Output Neutralization for Logs vulnerability in Tridium Niagara Framework on Windows, Linux, QNX, Tri
CVE-2025-3941 MEDIUM 5.4 DOWNGRADE DOWNGRADE Improper Handling of Windows ::DATA Alternate Data Stream vulnerability in Tridium Niagara Framework on Window
CVE-2025-3940 MEDIUM 5.3 DOWNGRADE DOWNGRADE Improper Use of Validation Framework vulnerability in Tridium Niagara Framework on Windows, Linux, QNX, Tridiu

References

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