CVE-2026-61497

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    CVE-2026-61497

    Published: 3 Nov 2026Last Modified: 5 Nov 2026

    Summary: TinyUSB < 0.20.1 Integer Underflow via HID Report Descriptor Parser

    Details: TinyUSB before 0.20.1 contains an integer underflow vulnerability in the HID host report descriptor parser tuh_hid_parse_report_descriptor() in src/class/hid/hid_host.c that allows a malicious USB device to trigger an out-of-bounds read by subtracting an item size from the remaining descriptor length without validating the item fits within the remaining buffer. Attackers can present a crafted USB device with a truncated report descriptor causing the uint16_t desc_len value to underflow, resulting in out-of-bounds memory reads and denial of service on the host system.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61497.json, https://nvd.nist.gov/vuln/detail/CVE-2026-61497, https://www.vulncheck.com/advisories/tinyusb-integer-underflow-via-hid-report-descriptor-parser, https://github.com/hathach/tinyusb/commit/85047e1777f5c20b7a936aa905c746125d3ed066, https://github.com/hathach/tinyusb/releases/tag/0.21.0, https://github.com/hathach/tinyusb

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -dae3f9a366bfcddbf9dcf1b48d7500286a849539

    Affected versions

    0.19.0

    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-2026-61497 | CVE-DB