{"id":"CVE-2023-4260","aliases":["EUVD-2023-54131","GHSA-gj27-862r-55wh"],"status":"published","title":"Potential off-by-one buffer overflow vulnerability in the Zephyr FS subsystem","description":"Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.","severity":{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00866,"percentile":0.59116,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120","CWE-193"],"published":"2023-09-26T19:23:48Z","modified":"2026-10-28T02:31:13Z","products":[{"vendor":"zephyrproject","product":"zephyr"},{"vendor":"zephyrproject-rtos","product":"zephyr"}],"references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-gj27-862r-55wh","tags":["x_transferred","Exploit","Vendor Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2023/11/07/1","tags":["x_transferred","Mailing List","web"]},{"url":"http://seclists.org/fulldisclosure/2023/Nov/1","tags":["x_transferred","Mailing List","Third Party Advisory","web"]},{"url":"http://packetstormsecurity.com/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.html","tags":["x_transferred","Third Party Advisory","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4260.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4260","tags":["advisory"]},{"url":"https://github.com/zephyrproject-rtos/zephyr","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-4260","title":"Potential off-by-one buffer overflow vulnerability in the Zephyr FS subsystem","description":"Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.","status":"published","published":"2023-09-26T19:23:48.078Z","modified":"2025-02-13T17:09:28.8Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-120","CWE-193"],"updated_at":"2026-11-02T14:35:30.851125Z"}],"euvd":[{"id":"EUVD-2023-54131","description":"Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.","status":"published","published":"2023-09-26T19:23:48Z","modified":"2025-02-13T17:09:28Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-03T00:03:49.098775Z"}],"nvd":[{"id":"CVE-2023-4260","description":"Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.","status":"published","published":"2023-09-27T15:19:40.037Z","modified":"2026-06-17T06:37:26.027Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-120","CWE-193"],"updated_at":"2026-11-02T14:08:31.699785Z"}],"osv":[{"id":"CVE-2023-4260","title":"Potential off-by-one buffer overflow vulnerability in the Zephyr FS subsystem","description":"Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.","status":"published","published":"2023-09-26T19:23:48.078Z","modified":"2026-10-28T02:31:13.32892847Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-120","CWE-193"],"updated_at":"2026-11-02T15:44:33.792101Z"}]}}