{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-20028",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-20028",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-05T16:18:08.371Z",
    "updatedAt": "2026-08-05T17:19:46.116Z",
    "importedAt": "2026-10-24T01:57:55.771Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Cisco Terminal Services Agent Firewall Rules Bypass Vulnerability",
      "summary": "A vulnerability in the network driver of Cisco Terminal Service (TS) Agent could allow an authenticated, remote attacker to bypass firewall rules that are associated with the account of the attacker.\r\n\r\nThis vulnerability is due to an incorrect mapping of network connections to user accounts. An attacker with at least user-level credentials could exploit this vulnerability by sending crafted network traffic to an affected device. A successful exploit could allow the attacker to inherit the firewall rules associated with a different user in the system.",
      "affected": [
        {
          "vendor": "Cisco",
          "product": "Cisco Terminal Services Agent",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "TSAgent-1.3",
              "status": "affected"
            },
            {
              "version": "TSAgent-1.4.2",
              "status": "affected"
            },
            {
              "version": "TSAgent-1.2",
              "status": "affected"
            },
            {
              "version": "TSAgent-1.4",
              "status": "affected"
            },
            {
              "version": "TSAgent-1.0",
              "status": "affected"
            },
            {
              "version": "TSAgent-1.4.1",
              "status": "affected"
            },
            {
              "version": "TSAgent-1.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}