{"id":"CVE-2020-11582","aliases":["EUVD-2020-3932","GHSA-7mjm-6675-w446"],"status":"published","title":"An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet...","description":"An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet in tncc.jar, executed on macOS, Linux, and Solaris clients when a Host Checker policy is enforced, launches a TCP server that accepts local connections on a random port. This can be reached by local HTTP clients, because up to 25 invalid lines are ignored, and because DNS rebinding can occur. (This server accepts, for example, a setcookie command that might be relevant to CVE-2020-11581 exploitation.)","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00879,"percentile":0.59512,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-307","CWE-668"],"published":"2020-04-06T20:03:20Z","modified":"2026-06-17T02:50:25Z","products":[{"vendor":"pulsesecure","product":"pulse_connect_secure"},{"vendor":"pulsesecure","product":"pulse_policy_secure"}],"references":[{"url":"https://git.lsd.cat/g/pulse-host-checker-rce","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11582"},{"url":"https://github.com/advisories/GHSA-7mjm-6675-w446"}],"sources":{"cve":[{"id":"CVE-2020-11582","description":"An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet in tncc.jar, executed on macOS, Linux, and Solaris clients when a Host Checker policy is enforced, launches a TCP server that accepts local connections on a random port. This can be reached by local HTTP clients, because up to 25 invalid lines are ignored, and because DNS rebinding can occur. (This server accepts, for example, a setcookie command that might be relevant to CVE-2020-11581 exploitation.)","status":"published","published":"2020-04-06T20:03:20Z","modified":"2024-08-04T11:35:13.293Z","updated_at":"2026-11-02T14:35:57.67317Z"}],"euvd":[{"id":"EUVD-2020-3932","description":"An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet in tncc.jar, executed on macOS, Linux, and Solaris clients when a Host Checker policy is enforced, launches a TCP server that accepts local connections on a random port. This can be reached by local HTTP clients, because up to 25 invalid lines are ignored, and because DNS rebinding can occur. (This server accepts, for example, a setcookie command that might be relevant to CVE-2020-11581 exploitation.)","status":"published","published":"2020-04-06T20:03:20Z","modified":"2024-08-04T11:35:13Z","updated_at":"2026-11-03T03:07:42.866588Z"}],"ghsa":[{"id":"GHSA-7mjm-6675-w446","title":"An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet...","description":"An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet in tncc.jar, executed on macOS, Linux, and Solaris clients when a Host Checker policy is enforced, launches a TCP server that accepts local connections on a random port. This can be reached by local HTTP clients, because up to 25 invalid lines are ignored, and because DNS rebinding can occur. (This server accepts, for example, a setcookie command that might be relevant to CVE-2020-11581 exploitation.)","status":"published","published":"2022-05-24T17:13:25Z","modified":"2023-01-29T05:01:58Z","cwes":["CWE-307","CWE-668"],"updated_at":"2026-11-02T14:44:57.695191Z"}],"nvd":[{"id":"CVE-2020-11582","description":"An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet in tncc.jar, executed on macOS, Linux, and Solaris clients when a Host Checker policy is enforced, launches a TCP server that accepts local connections on a random port. This can be reached by local HTTP clients, because up to 25 invalid lines are ignored, and because DNS rebinding can occur. (This server accepts, for example, a setcookie command that might be relevant to CVE-2020-11581 exploitation.)","status":"published","published":"2020-04-06T21:15:13.607Z","modified":"2026-06-17T02:50:25.25Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":3.3,"vector":"AV:A/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T14:05:57.678762Z"}]}}