CVE-2026-61495

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    CVE-2026-61495

    Published: 3 Nov 2026Last Modified: 5 Nov 2026

    Summary: TinyUSB 0.21.0 Out-of-Bounds Write via mtp_container_get_string()

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61495.json, https://nvd.nist.gov/vuln/detail/CVE-2026-61495, https://www.vulncheck.com/advisories/tinyusb-out-of-bounds-write-via-mtp-container-get-string, https://github.com/hathach/tinyusb/commit/e85c2b8affa1efbf00d398d59e7a87d3e61cc4a9, https://github.com/hathach/tinyusb

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -e85c2b8affa1efbf00d398d59e7a87d3e61cc4a9

    Affected versions

    0.21.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-61495 | CVE-DB