{"id":"CVE-2019-25044","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-25044","generatedAt":"2026-10-27T22:25:03.049Z","title":"The block subsystem in the Linux kernel before 5.2 has a use-after-free that can lead to arbitrary code execution in the kernel context and privilege escalation, aka CID-c3e2219216c9.","description":"The block subsystem in the Linux kernel before 5.2 has a use-after-free that can lead to arbitrary code execution in the kernel context and privilege escalation, aka CID-c3e2219216c9. This is related to blk_mq_free_rqs and blk_cleanup_queue.","published":"2021-05-14T23:15:08.000Z","lastModified":"2026-06-17T02:31:33.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["linux/linux kernel","netapp/cloud backup","netapp/solidfire \\& hci management node","netapp/solidfire baseboard management controller firmware","netapp/h300s firmware","netapp/h500s firmware","netapp/h700s firmware","netapp/h300e firmware","netapp/h500e firmware","netapp/h700e firmware","netapp/h410s firmware","netapp/h410c firmware"],"epss":{"score":0.00645,"percentile":0.50624,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3e2219216c92919a6bd1711f340f5faa98695e6","tags":["Mailing List","Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20210629-0006/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-blk_mq_free_rqs","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://syzkaller.appspot.com/bug?id=36fe241584203cf394d44560a42e3430434f1213","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3e2219216c92919a6bd1711f340f5faa98695e6","tags":["Mailing List","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20210629-0006/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-blk_mq_free_rqs","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://syzkaller.appspot.com/bug?id=36fe241584203cf394d44560a42e3430434f1213","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-25044","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."}