{"id":"CVE-2024-21894","published":"2024-04-04T22:16:29Z","modified":"2024-10-03T21:43:40Z","title":"A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows…","vendor":"Ivanti","product":"Connect Secure","tier":"core","eol":null,"affectedVersions":[{"vendor":"Ivanti","product":"Connect Secure","versions":[">= 22.1R6.2, < 22.1R6.2",">= 22.2R4.2, < 22.2R4.2",">= 22.3R1.2, < 22.3R1.2",">= 22.4R1.2, < 22.4R1.2",">= 22.4R2.4, < 22.4R2.4",">= 22.5R1.3, < 22.5R1.3",">= 22.5R2.4, < 22.5R2.4",">= 22.6R2.3, < 22.6R2.3",">= 9.1R14.6, < 9.1R14.6",">= 9.1R15.4, < 9.1R15.4"]},{"vendor":"Ivanti","product":"Policy Secure","versions":[">= 22.4R1.2, < 22.4R1.2",">= 22.6R1.2, < 22.6R1.2",">= 9.1R16.4, < 9.1R16.4",">= 9.1R17.4, < 9.1R17.4",">= 9.1R18.5, < 9.1R18.5"]}],"description":{"text":"A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack. In certain conditions this may lead to execution of arbitrary code ","provenance":"source","from":"CVE.org"},"summary":null,"cvss":{"score":8.2,"severity":"HIGH","version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.18987,"percentile":0.97296,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2024-10-30","exploitedFirstSeen":"2024-10-30","ransomware":false,"evidence":[{"url":"https://www.reliaquest.com/blog/5-critical-threat-actors-you-need-to-know-about/","date":"2024-10-30"},{"url":"https://cert.pl/uploads/docs/Report_CP_2024.pdf","date":"2025-04-03"}],"evidenceTotal":2,"provenance":"source"},"exploited":true,"otx":{"pulseCount":9,"pulses":[{"name":"New Chaos RAT Variants Threaten Windows and Linux Systems with Stealthy Data Theft","url":"https://otx.alienvault.com/pulse/6843300336b121603e3cffad","created":"2025-06-06"},{"name":"APT29 Exploits Rogue RDP in October 2024 Hacking Campaign","url":"https://otx.alienvault.com/pulse/676652f7b1080740c101e9e9","created":"2024-12-21"},{"name":"APT29 Exploits Rogue RDP in October 2024 Hacking Campaign","url":"https://otx.alienvault.com/pulse/676652f7393d00df56cffdc0","created":"2024-12-21"},{"name":"APT29 Exploits Rogue RDP in October 2024 Hacking Campaign","url":"https://otx.alienvault.com/pulse/676652f7a55e1301c9233e6c","created":"2024-12-21"},{"name":"APT29 Exploits Rogue RDP in October 2024 Hacking Campaign","url":"https://otx.alienvault.com/pulse/676652f78bbff8f3a7dcb4c3","created":"2024-12-21"},{"name":"APT29 Exploits Rogue RDP in October 2024 Hacking Campaign","url":"https://otx.alienvault.com/pulse/676652f6a7ad2f6c63bac5d6","created":"2024-12-21"},{"name":"BlueNoroff used macOS malware with novel persistence","url":"https://otx.alienvault.com/pulse/672d552ee02b6697ba5e6474","created":"2024-11-08"},{"name":"CISA adds Ivanti Virtual Traffic Manager flaw to its Exploited Vulnerabilities List","url":"https://otx.alienvault.com/pulse/66f3d4dff860d18695313fd6","created":"2024-09-25"},{"name":"Chalubo malware destroy 600,000 SOHO routers in 72 hours","url":"https://otx.alienvault.com/pulse/665a1fc3ee450e5f92ad6322","created":"2024-05-31"}],"provenance":"machine"},"cwes":[{"id":"CWE-703","name":"Improper Check or Handling of Exceptional Conditions"}],"references":[{"url":"https://forums.ivanti.com/s/article/SA-CVE-2024-21894-Heap-Overflow-CVE-2024-22052-Null-Pointer-Dereference-CVE-2024-22053-Heap-Overflow-and-CVE-2024-22023-XML-entity-expansion-or-XXE-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure-Gateways?language=en_US","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2024-19505","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-19505","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2024-04-04","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2024-21894","provenance":"source"},{"date":"2024-10-30","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.reliaquest.com/blog/5-critical-threat-actors-you-need-to-know-about/","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":62.5,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 730 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.46,"detail":"percentile 0.9730"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":2.27,"detail":"9 pulses"},{"name":"CVSS severity","points":5.74,"detail":"base score 8.2"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}