CVE-2026-12996

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{"bugzilla": {"description": "OpenVPN: OpenVPN: Denial of Service or memory leak via crafted packets", "id": "2509536", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2509536"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in OpenVPN. This use-after-free vulnerability allows remote authenticated peers to send specially crafted packets during TLS (Transport Layer Security) session promotion or expiry. Successful exploitation of this flaw could lead to a denial of service, making the service unavailable, or result in a memory leak, potentially exposing sensitive information."], "name": "CVE-2026-12996", "public_date": "2026-07-30T16:38:58Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-12996\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-12996\nhttps://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026\nhttps://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026\nhttps://community.openvpn.net/Security%20Announcements/CVE-2026-12996"], "statement": "Moderate impact. This use-after-free flaw in OpenVPN requires a remote authenticated peer to send specially crafted packets during TLS session handling. While it can lead to a denial of service or memory leak, the need for prior authentication limits the attack vector, making it less severe than unauthenticated vulnerabilities.", "threat_severity": "Moderate"}

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