{"id":"CVE-2019-4279","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-4279","generatedAt":"2026-11-05T02:55:42.974Z","title":"IBM WebSphere Application Server 8.5 and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources.","description":"IBM WebSphere Application Server 8.5 and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources. IBM X-Force ID: 160445.","published":"2019-05-17T16:29:03.000Z","lastModified":"2026-06-17T02:36:22.000Z","status":"Modified","sourceIdentifier":"psirt@us.ibm.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-502"],"affected":["ibm/websphere application server"],"epss":{"score":0.79926,"percentile":0.99612,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2019-06-05","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":46969,"kind":"exploit","title":"IBM Websphere Application Server - Network Deployment Untrusted Data Deserialization Remote Code Execution (Metasploit)","url":"https://www.exploit-db.com/exploits/46969","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/46969.rb","file":"exploits/windows/remote/46969.rb","published":"2019-06-05","added":"2019-06-05","updated":"2019-06-07","author":"Metasploit","type":"remote","platform":"windows","port":null,"verified":true,"codes":["CVE-2019-8352","CVE-2019-4279"],"tags":"Metasploit Framework (MSF)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/rapid7/metasploit-framework/blob/c1572c89a802dfc36253f95f29af7bda890b2b71/modules/exploits/windows/ibm/ibm_was_dmgr_java_deserialization_rce.rb"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 79.9%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/108450","tags":["Third Party Advisory","VDB Entry"],"source":"psirt@us.ibm.com"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/160445","tags":["VDB Entry","Vendor Advisory"],"source":"psirt@us.ibm.com"},{"url":"https://www.ibm.com/support/docview.wss?uid=ibm10883628","tags":["Vendor Advisory"],"source":"psirt@us.ibm.com"},{"url":"http://www.securityfocus.com/bid/108450","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/160445","tags":["VDB Entry","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.ibm.com/support/docview.wss?uid=ibm10883628","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-4279","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}