AI description
CVE-2026-44194 is an authenticated Remote Code Execution (RCE) vulnerability affecting OPNsense, a FreeBSD-based firewall and routing platform, in versions prior to 26.1.8. This flaw allows a user with user-management privileges to execute arbitrary system commands as root. The vulnerability stems from a bypass of input validation within the local user synchronization flow, specifically in the `core/src/opnsense/scripts/auth/sync_user.php` script. An attacker can craft a malicious payload disguised as a compliant email address, which then enables the execution of shell commands on the underlying operating system. The issue is resolved in OPNsense version 26.1.8.
- Description
- OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.8, an authenticated Remote Code Execution (RCE) vulnerability in the OPNsense core allows a user with user-management privileges to execute arbitrary system commands as root. An attacker can bypass input validation by formatting their malicious payload as a compliant email address, allowing shell commands to reach the underlying operating system. The flaw exists in the local user synchronization flow, within core/src/opnsense/scripts/auth/sync_user.php. This vulnerability is fixed in 26.1.8.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
- Products
- opnsense
CVSS 3.1
- Type
- Secondary
- Base score
- 9.1
- Impact score
- 6
- Exploitability score
- 2.3
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Severity
- CRITICAL
- security-advisories@github.com
- CWE-78
- Hype score
- Not currently trending
CVE-2026-44194 & CVE-2026-45158: Two RCE vulnerabilities in OPNsense, 9.1 rating 🔥 Two vulnerabilities in OPNsense allows an authenticated attacker to execute arbitrary code as root on the firewall host via User management system (CVE-2026-44194) and DHCP Config https://t
@Netlas_io
15 May 2026
2555 Impressions
10 Retweets
34 Likes
11 Bookmarks
2 Replies
0 Quotes
OPNsenseに重大(Critical)な脆弱性2件。CVE-2026-44194はWebインターフェースのユーザ名にメールアドレスを指定した際のOSコマンドインジェクション。CVE-2026-45158はDHCP構成からのOSコマンドインジェクション。いずれも
@__kokumoto
14 May 2026
300 Impressions
1 Retweet
2 Likes
0 Bookmarks
0 Replies
0 Quotes
Public PoC for OPNsense CVE-2026-44194 and CVE-2026-45158. Critical flaws allow root command execution via DHCP and User sync. Update to 26.1.8 now! #OPNsense #CyberSecurity #InfoSec #RCE #VulnerabilityAlert #CVE #Firewall #OpenSource #RootExploit #PoC https://t.co/BfnGvOtwTS ht
@the_yellow_fall
14 May 2026
818 Impressions
5 Retweets
12 Likes
4 Bookmarks
0 Replies
0 Quotes
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