{"cve":"CVE-2021-33315","nvd":{"published":"2022-05-11T18:15:22.580","modified":"2026-06-17T03:54:25.937","status":"Modified","description":"The TRENDnet TI-PG1284i switch(hw v2.0R) prior to version 2.0.2.S0 suffers from an integer underflow vulnerability. This vulnerability exists in its lldp related component. Due to lack of proper validation on length field of PortID TLV, by sending a crafted lldp packet to the device, integer underflow would occur and the negative number will be passed to memcpy() later, which may cause buffer overflow or invalid memory access.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-20"],"references":["https://www.trendnet.com/support/view.asp?cat=4&id=81","https://www.trendnet.com/support/view.asp?cat=4&id=81"],"products":["trendnet:teg-30102ws_firmware","trendnet:ti-g102i_firmware","trendnet:ti-g160i_firmware","trendnet:ti-g642i_firmware","trendnet:ti-pg102i_firmware","trendnet:ti-pg1284i_firmware","trendnet:ti-pg541i_firmware","trendnet:ti-rp262i_firmware","trendnet:tpe-30102ws_firmware"],"source":"nvd","synced_at":"2026-10-19T21:31:59.322382750+00:00"},"epss":{"cve":"CVE-2021-33315","score":0.01068,"percentile":0.64819,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}