{"id":"CVE-2025-0690","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-0690","generatedAt":"2026-10-28T02:15:56.927Z","title":"During this process, with a line big enough it's possible to make this variable to overflow leading to a out-of-bounds write in the heap based buffer.","description":"The read command is used to read the keyboard input from the user, while reads it keeps the input length in a 32-bit integer value which is further used to reallocate the line buffer to accept the next character. During this process, with a line big enough it's possible to make this variable to overflow leading to a out-of-bounds write in the heap based buffer. This flaw may be leveraged to corrupt grub's internal critical data and secure boot bypass is not discarded as consequence.","published":"2025-02-24T08:15:10.000Z","lastModified":"2026-10-21T21:17:31.000Z","status":"Deferred","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":[],"epss":{"score":0.00793,"percentile":0.56098,"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":"low","text":"Lower severity and a low EPSS score (0.79%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2025:6990","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2025-0690","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2346123","source":"secalert@redhat.com"},{"url":"https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html","source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-0690","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."}