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[NEW] [high] OPNsense: Multiple vulnerabilities

highCVE-2026-57154CVE-2026-57155CVE-2026-58391CVE-2026-58392CVE-2026-58393CVE-2026-58394
An attacker can exploit multiple vulnerabilities in OPNsense to execute arbitrary code with administrative privileges, bypass security measures, conduct a Cross-Site Scripting attack, manipulate files, disclose information, and perform a Denial of Service attack.

CSIRTS triage

vendor: OPNsenseproduct: OPNsenseRemote code executionAuthentication bypassCross-site scriptingInformation disclosureDenial of service
What
An attacker can exploit multiple vulnerabilities in OPNsense to execute arbitrary code with administrative privileges.
Who is affected
Deployments of OPNsense are affected.
Urgency
Remediation is urgent due to the high severity and potential for arbitrary code execution.
Action
Apply the latest patches provided by OPNsense.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity
high
Published
2026-07-02
Exploitation
Not in CISA KEV at last sync
Language
Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2177

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-57154coverage & exploitation statusNVD · CVE.org
CVE-2026-57155coverage & exploitation statusNVD · CVE.org
CVE-2026-58391coverage & exploitation statusNVD · CVE.org
CVE-2026-58392coverage & exploitation statusNVD · CVE.org
CVE-2026-58393coverage & exploitation statusNVD · CVE.org
CVE-2026-58394coverage & exploitation statusNVD · CVE.org
CVE-2026-58395coverage & exploitation statusNVD · CVE.org

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