{"id":"CVE-2026-121995","published":"2026-11-05T17:18:00.690","lastModified":"2026-11-05T17:18:00.820","description":"A stack buffer overflow in the GDB client's tracepoint upload handler allows an attacker-controlled debug stub to corrupt stack memory automatically during connection setup. The overflow results from GDB reading beyond the current reply boundary into a stale prior reply in the shared packet buffer.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","cwes":["CWE-121"],"vendors":[],"products":[],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-121995","tags":[]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2565677","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}