{
  "threat_severity" : "Moderate",
  "public_date" : "2026-07-30T16:38:58Z",
  "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"
  },
  "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 use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry", "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." ],
  "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.",
  "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" ],
  "name" : "CVE-2026-12996",
  "csaw" : false
}