{"id":"CVE-2023-31475","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-31475","generatedAt":"2026-11-04T23:32:06.169Z","title":"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.","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.","published":"2023-05-11T11:15:09.000Z","lastModified":"2026-06-17T05:57:04.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-120"],"affected":["gl-inet/gl-s20 firmware","gl-inet/gl-x3000 firmware","gl-inet/gl-mt3000 firmware","gl-inet/gl-mt2500 firmware","gl-inet/gl-mt2500a firmware","gl-inet/gl-axt1800 firmware","gl-inet/gl-a1300 firmware","gl-inet/gl-ax1800 firmware","gl-inet/gl-sft1200 firmware","gl-inet/gl-mt1300 firmware","gl-inet/gl-e750 firmware","gl-inet/gl-mv1000 firmware","gl-inet/gl-mv1000w firmware","gl-inet/gl-s10 firmware","gl-inet/gl-s200 firmware","gl-inet/gl-s1300 firmware","gl-inet/gl-sf1200 firmware","gl-inet/gl-b1300 firmware","gl-inet/gl-b2200 firmware","gl-inet/gl-ap1300 firmware","gl-inet/gl-ap1300lte firmware","gl-inet/gl-x1200 firmware","gl-inet/gl-x750 firmware","gl-inet/gl-x300b firmware","gl-inet/gl-xe300 firmware","gl-inet/gl-ar750s firmware","gl-inet/gl-ar750 firmware","gl-inet/gl-mifi firmware","gl-inet/gl-mt300n-v2 firmware","gl-inet/gl-ar300m firmware","gl-inet/gl-usb150 firmware","gl-inet/microuter-n300 firmware"],"epss":{"score":0.13743,"percentile":0.96514,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 13.7%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://github.com/gl-inet/CVE-issues/blob/main/3.215/Buffer_Overflow.md","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://justinapplegate.me/2023/glinet-CVE-2023-31475/","source":"cve@mitre.org"},{"url":"https://www.gl-inet.com","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/gl-inet/CVE-issues/blob/main/3.215/Buffer_Overflow.md","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://justinapplegate.me/2023/glinet-CVE-2023-31475/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.gl-inet.com","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-31475","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."}