CVE WatchNov 3, 2026

CVE-2026-61497

TinyUSB before 0.20.1 contains an integer underflow vulnerability in the HID host report descriptor parser tuh_hid_parse_report_descriptor()

CVSS

5.2

Medium

EPSS

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KEV

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Exploit Today

0-100

Published: Nov 3, 2026 · Last modified: Nov 3, 2026 · CWE-191

EPSS · 30d

Not enough EPSS history yet.

Technical description

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.

Official references

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-1217277.5 HIG

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——1In adsp, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11431442; Issue ID: MSV-9924.1d CVE-2026-111735—

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