CVSS 4.0
6.0 mediumCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:NCVE-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.
Severity
CVSS 3.1
5.9 mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L- CWE
- CWE-93
- Published
- Modified
- Record from
- the NVD, synced
References
- 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