{"id":"CVE-2023-31475","aliases":["EUVD-2023-35780","GHSA-27c8-cpgv-r39p"],"status":"published","title":"An issue was discovered on GL.iNet devices before 3.216. The function guci2_get() found in...","description":"An issue was discovered on GL.iNet devices before 3.216. The function guci2_get() found in libglutil.so has a buffer overflow when an item is requested from a UCI context, and the value is pasted into a char pointer to a buffer without checking the size of the buffer.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.13743,"percentile":0.96538,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2023-05-11T00:00:00Z","modified":"2026-06-17T05:57:03Z","products":[{"vendor":"gl-inet","product":"gl-a1300_firmware"},{"vendor":"gl-inet","product":"gl-ap1300_firmware"},{"vendor":"gl-inet","product":"gl-ap1300lte_firmware"},{"vendor":"gl-inet","product":"gl-ar300m_firmware"},{"vendor":"gl-inet","product":"gl-ar750_firmware"},{"vendor":"gl-inet","product":"gl-ar750s_firmware"},{"vendor":"gl-inet","product":"gl-ax1800_firmware"},{"vendor":"gl-inet","product":"gl-axt1800_firmware"},{"vendor":"gl-inet","product":"gl-b1300_firmware"},{"vendor":"gl-inet","product":"gl-b2200_firmware"},{"vendor":"gl-inet","product":"gl-e750_firmware"},{"vendor":"gl-inet","product":"gl-mifi_firmware"},{"vendor":"gl-inet","product":"gl-mt1300_firmware"},{"vendor":"gl-inet","product":"gl-mt2500_firmware"},{"vendor":"gl-inet","product":"gl-mt2500a_firmware"},{"vendor":"gl-inet","product":"gl-mt3000_firmware"},{"vendor":"gl-inet","product":"gl-mt300n-v2_firmware"},{"vendor":"gl-inet","product":"gl-mv1000_firmware"},{"vendor":"gl-inet","product":"gl-mv1000w_firmware"},{"vendor":"gl-inet","product":"gl-s10_firmware"},{"vendor":"gl-inet","product":"gl-s1300_firmware"},{"vendor":"gl-inet","product":"gl-s200_firmware"},{"vendor":"gl-inet","product":"gl-s20_firmware"},{"vendor":"gl-inet","product":"gl-sf1200_firmware"},{"vendor":"gl-inet","product":"gl-sft1200_firmware"},{"vendor":"gl-inet","product":"gl-usb150_firmware"},{"vendor":"gl-inet","product":"gl-x1200_firmware"},{"vendor":"gl-inet","product":"gl-x3000_firmware"},{"vendor":"gl-inet","product":"gl-x300b_firmware"},{"vendor":"gl-inet","product":"gl-x750_firmware"},{"vendor":"gl-inet","product":"gl-xe300_firmware"},{"vendor":"gl-inet","product":"microuter-n300_firmware"}],"references":[{"url":"https://www.gl-inet.com","tags":["x_transferred","Vendor Advisory"]},{"url":"https://github.com/gl-inet/CVE-issues/blob/main/3.215/Buffer_Overflow.md","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://justinapplegate.me/2023/glinet-CVE-2023-31475/","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-31475"},{"url":"https://justinapplegate.me/2023/glinet-CVE-2023-31475"},{"url":"https://github.com/advisories/GHSA-27c8-cpgv-r39p"}],"sources":{"cve":[{"id":"CVE-2023-31475","description":"An issue was discovered on GL.iNet devices before 3.216. The function guci2_get() found in libglutil.so has a buffer overflow when an item is requested from a UCI context, and the value is pasted into a char pointer to a buffer without checking the size of the buffer.","status":"published","published":"2023-05-11T00:00:00Z","modified":"2025-01-27T17:17:11.696Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:27.430605Z"}],"euvd":[{"id":"EUVD-2023-35780","description":"An issue was discovered on GL.iNet devices before 3.216. The function guci2_get() found in libglutil.so has a buffer overflow when an item is requested from a UCI context, and the value is pasted into a char pointer to a buffer without checking the size of the buffer.","status":"published","published":"2023-05-11T00:00:00Z","modified":"2025-01-27T17:17:11Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:04:13.087176Z"}],"ghsa":[{"id":"GHSA-27c8-cpgv-r39p","title":"An issue was discovered on GL.iNet devices before 3.216. The function guci2_get() found in...","description":"An issue was discovered on GL.iNet devices before 3.216. The function guci2_get() found in libglutil.so has a buffer overflow when an item is requested from a UCI context, and the value is pasted into a char pointer to a buffer without checking the size of the buffer.","status":"published","published":"2023-05-11T12:30:14Z","modified":"2024-04-04T04:02:16Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:56:20.636792Z"}],"nvd":[{"id":"CVE-2023-31475","description":"An issue was discovered on GL.iNet devices before 3.216. The function guci2_get() found in libglutil.so has a buffer overflow when an item is requested from a UCI context, and the value is pasted into a char pointer to a buffer without checking the size of the buffer.","status":"published","published":"2023-05-11T11:15:09.147Z","modified":"2026-06-17T05:57:03.867Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:08:02.399327Z"}]}}