CVE-2026-119560

OPNsense core through 26.7.8 contains a configuration injection vulnerability that allows authenticated users to append ntpd.conf directives by embedding newlines in the fudge and refid fields. Attackers holding the page-services-ntp-gps or PPS privilege can submit CR/LF characters via services_ntpd_gps.php or services_ntpd_pps.php to inject directives loaded by ntpd running as root.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://abraxaslabs.tech/research/opnsense-ntp-gps-fudge
https://github.com/opnsense/core
https://github.com/opnsense/core/blob/26.7.8/src/etc/inc/plugins.inc.d/ntpd.inc#L285-L312
https://github.com/opnsense/core/blob/26.7.8/src/www/services_ntpd_gps.php#L49
https://github.com/opnsense/core/security/advisories/GHSA-fq94-cxvc-9r7w
https://www.vulncheck.com/advisories/opnsense-core-through-26.7.8-ntp-configuration-injection-via-gps-and-pps-fudge-fields

Configurations

No configuration.

History

30 Oct 2026, 12:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-30 12:16

Updated : 2026-10-30 19:23

NVD link : CVE-2026-119560

Mitre link : CVE-2026-119560

CVE.ORG link : CVE-2026-119560

JSON object : View

Products Affected

No product.

CWE

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

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