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CVE-2026-119560— OPNsense core through 26.7.8 NTP Configuration Injection via GPS and PPS Fudge Fields

Quick assessment

Affected
opnsense core
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OPNsense 核心版本 26.7.8 及更早版本存在配置注入漏洞，允许已认证用户通过在 和 字段中嵌入换行符来追加 指令。拥有 或 权限的攻击者可通过 或 提交回车换行符（CR/LF），从而注入由以 root 权限运行的 进程加载的指令。

CVSS 5.9 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-119560

Vulnerability Information
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Vulnerability Title
OPNsense core through 26.7.8 NTP Configuration Injection via GPS and PPS Fudge Fields
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对CRLF序列的转义处理不恰当(CRLF注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
opnsense core 0 ~ 26.7.8 -

II. Public POCs for CVE-2026-119560

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III. Intelligence Information for CVE-2026-119560

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Patches & Fixes for CVE-2026-119560 (1)

Vendor Advisories for CVE-2026-119560 (2)

Proof of Concept for CVE-2026-119560 (1)

Security Blog Posts for CVE-2026-119560 (1)

Other References for CVE-2026-119560 (1)

Same Patch Batch · opnsense · 2026-10-30 · 5 CVEs total

CVE-2026-119409 7.2 HIGH OPNsense before 26.7.8 Root Command Injection via Firmware Mirror Setting
CVE-2026-119424 6.8 MEDIUM OPNsense before 26.7.8 Wireless WPA Configuration Line Injection via Identity
CVE-2026-119425 5.4 MEDIUM OPNsense 26.1.6 through 26.7.7 Captive Portal Session Takeover via Forged ARP
CVE-2026-119423 5.3 MEDIUM OPNsense core before 26.7.8 Lockout IP Planting via WebGUI Login Username

IV. Related Vulnerabilities

Same product: core
Same vendor: opnsense
Same weakness: CWE-93