{"id":"CVE-2026-61495","published":"2026-11-03T21:17:42.487","lastModified":"2026-11-03T23:17:50.427","description":"TinyUSB through 0.21.0, fixed in commit e85c2b8, contains an out-of-bounds write vulnerability in the MTP device class helper mtp_container_get_string() in src/class/mtp/mtp.h that allows a malicious USB host to corrupt adjacent memory by supplying a crafted MTP string with an unbounded character count. Attackers can exploit the unchecked memcpy operation copying up to 510 bytes into a fixed-size destination buffer to achieve code execution or cause a denial of service on the TinyUSB MTP device.","cvssScore":6.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-787"],"vendors":[],"products":[],"references":[{"url":"https://github.com/hathach/tinyusb/commit/e85c2b8affa1efbf00d398d59e7a87d3e61cc4a9","tags":[]},{"url":"https://www.vulncheck.com/advisories/tinyusb-out-of-bounds-write-via-mtp-container-get-string","tags":[]}],"exploitRefs":[{"url":"https://github.com/hathach/tinyusb/commit/e85c2b8affa1efbf00d398d59e7a87d3e61cc4a9","tags":[]}],"hasPoc":true,"ai":null}