| Summary | OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.8, unsanitized user input is passed to the DHCP configuration of the configured interface, which is processed by a shell script, allowing remote code execution as root on the underlying operating system. This vulnerability is fixed in 26.1.8. |
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| Publication Date | May 14, 2026, 7:16 a.m. |
| Registration Date | May 15, 2026, 4:23 a.m. |
| Last Update | May 15, 2026, 3:14 a.m. |
| CVSS3.1 : CRITICAL | |
| スコア | 9.1 |
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| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃に必要な特権レベル(PR) | 高 |
| 利用者の関与(UI) | 不要 |
| 影響の想定範囲(S) | 変更あり |
| 機密性への影響(C) | 高 |
| 完全性への影響(I) | 高 |
| 可用性への影響(A) | 高 |