{"id":"CVE-2021-22899","published":"2021-05-27T12:15:07Z","modified":"2026-06-17T03:37:58Z","title":"Ivanti Pulse Connect Secure Command Injection Vulnerability","vendor":"Ivanti","product":"Pulse Connect Secure","tier":"core","eol":null,"description":{"text":"A command injection vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to perform remote code execution via Windows Resource Profiles Feature","provenance":"source","from":"NVD"},"summary":{"text":"Ivanti Pulse Connect Secure, prior to 9.1R11.4, contains a command injection flaw in its Windows Resource Profiles feature. A remote attacker with low-privilege authenticated access and no user interaction can achieve remote code execution on the affected appliance.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T05:10:21Z"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.22915,"percentile":0.97741,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"Reference CISA's ED 21-03 (https://www.cisa.gov/news-events/directives/ed-21-03-mitigate-pulse-connect-secure-product-vulnerabilities) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 21-03. https://nvd.nist.gov/vuln/detail/CVE-2021-22899","provenance":"source"},"vulncheckKev":{"dateAdded":"2021-08-20","exploitedFirstSeen":"2021-08-20","ransomware":false,"evidence":[{"url":"https://www.cisa.gov/news-events/cybersecurity-advisories/aa21-209a","date":"2021-08-20"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2021-11-03"}],"evidenceTotal":2,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command"}],"references":[{"url":"https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/?kA23Z000000boUWSAY","tags":["Broken Link","Vendor Advisory"]},{"url":"https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/?kA23Z000000boUWSAY","tags":["Broken Link","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22899","tags":["US Government Resource"]}],"techniques":[{"id":"T1078","name":"Valid Accounts","tactics":["initial-access","persistence","privilege-escalation","stealth"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Command Injection","mappingType":"exploitation_technique","evidence":[],"comment":"This vulnerability is exploited through a command injection weakness. Remote authenticated attackers leverage this vulnerability to perform arbitrary code execution on the target system via the Windows Resource Profiles Feature.","confidence":"high"},{"id":"T1059.003","name":"Windows Command Shell","tactics":["execution"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Command Injection","mappingType":"primary_impact","evidence":[],"comment":"This vulnerability is exploited through a command injection weakness. Remote authenticated attackers leverage this vulnerability to perform arbitrary code execution on the target system via the Windows Resource Profiles Feature.","confidence":"low","confidenceNote":"Windows-only technique on a non-Windows product"}],"reports":[{"id":"SRC-f144807c3c05fbc98a1a","title":"Ransomware as a service: Understanding the cybercrime gig economy and how to protect yourself","publisher":"microsoft.com","url":"https://www.microsoft.com/en-us/security/blog/2022/05/09/ransomware-as-a-service-understanding-the-cybercrime-gig-economy-and-how-to-protect-yourself/","date":"2022-05-09","mentions":[{"quote":"Pulse Secure VPN systems affected by CVE-2019-11510, CVE-2020-8260, CVE-2020-8243, CVE-2021-22893, CVE-2021-22894, CVE-2021-22899, and CVE-2021-22900","start":62242,"end":62391}]}],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2021-10031","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-10031","exploited":true,"exploitedSince":"2021-11-03","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1078"],"provenance":"source"},{"stage":"related","techniques":["T1059.003"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2021-05-27","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22899","provenance":"source"},{"date":"2021-08-20","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.cisa.gov/news-events/cybersecurity-advisories/aa21-209a","provenance":"source"},{"date":"2021-11-03","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2021-11-03","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-10031","provenance":"source"},{"date":"2022-05-09","kind":"report","label":"Named in microsoft.com: Ransomware as a service: Understanding the cybercrime gig economy and how to protect yourself","url":"https://www.microsoft.com/en-us/security/blog/2022/05/09/ransomware-as-a-service-understanding-the-cybercrime-gig-economy-and-how-to-protect-yourself/","provenance":"machine"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":160},"priority":{"score":67.6,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1898 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.55,"detail":"percentile 0.9774"},{"name":"Named in threat reports","points":3.87,"detail":"1 report"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.16,"detail":"base score 8.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-ivanti-connect-secure-cwe-77"}}