CVE-2020-11582
lowpriority · track · 35EPSS 0.009 · 59 %ileEUUSEPSS · scored 2026-10-27
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.)
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 3.3–8.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
- pulsesecure pulse connect secure≤ 2020-04-06nvdUScpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:*
- pulsesecure pulse policy secureall versionsnvdUScpe:2.3:a:pulsesecure:pulse_policy_secure:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://git.lsd.cat/g/pulse-host-checker-rcecnnvd
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426cnnvd
- https://media.cert.europa.eu/static/SecurityAdvisories/2020/CERT-EU-SA2020-023.pdfcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-11582cnnvd
- https://vigilance.fr/vulnerability/Pulse-Secure-Pulse-Connect-Secure-Man-in-the-Middle-31946cnnvd
- https://git.lsd.cat/g/pulse-host-checker-rceenisa_euvd
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426enisa_euvd
- https://git.lsd.cat/g/pulse-host-checker-rceExploitThird Party Advisorynvd
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