{"id":"CVE-2017-7228","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-7228","generatedAt":"2026-10-28T21:18:16.126Z","title":"The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.","description":"An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.","published":"2017-04-04T14:59:00.000Z","lastModified":"2026-06-17T01:23:54.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":8.2,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-129"],"affected":["xen/xen"],"epss":{"score":0.01569,"percentile":0.75215,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-04-11","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":41870,"kind":"exploit","title":"Xen - Broken Check in 'memory_exchange()' Permits PV Guest Breakout","url":"https://www.exploit-db.com/exploits/41870","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/local/41870.txt","file":"exploits/multiple/local/41870.txt","published":"2017-04-11","added":"2017-04-11","updated":"2017-04-11","author":"Google Security Research","type":"local","platform":"multiple","port":null,"verified":true,"codes":["CVE-2017-7228","XSA-212"],"tags":"Local","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1184"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 1.6%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://openwall.com/lists/oss-security/2017/04/04/3","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2017/dsa-3847","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/97375","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1038223","source":"cve@mitre.org"},{"url":"http://xenbits.xen.org/xsa/advisory-212.html","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt","source":"cve@mitre.org"},{"url":"https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html","tags":["Technical Description","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/41870/","source":"cve@mitre.org"},{"url":"http://openwall.com/lists/oss-security/2017/04/04/3","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2017/dsa-3847","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/97375","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1038223","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://xenbits.xen.org/xsa/advisory-212.html","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html","tags":["Technical Description","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/41870/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-7228","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."}