Answer in brief
CVE-2026-45923 records a Medium severity (CVSS 5.5) vulnerability in net: usb: catc: enable basic endpoint checking. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-45923 records a Medium severity (CVSS 5.5) vulnerability in net: usb: catc: enable basic endpoint checking. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <eade522d3e6ac3f3bfb51bfa5b5b4b32bd0b846f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ac7739b78ded519e1d9919a814da3b34120bec8c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <163d04897e57633c5d2e69734e4e4b22bb63f50d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a488001a8197da4f9c413eec8f6acbff71c60145 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <36c28b028efba0f42218d41fed12c47ce217c1f1 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a42cfced8900d33d032c7ec338484855b61b8cc || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9e7021d2aeae57c323a6f722ed7915686cdcc123 | eade522d3e6ac3f3bfb51bfa5b5b4b32bd0b846f, ac7739b78ded519e1d9919a814da3b34120bec8c, 163d04897e57633c5d2e69734e4e4b22bb63f50d, a488001a8197da4f9c413eec8f6acbff71c60145, 36c28b028efba0f42218d41fed12c47ce217c1f1, 1a42cfced8900d33d032c7ec338484855b61b8cc, 9e7021d2aeae57c323a6f722ed7915686cdcc123 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: net: usb: catc: enable basic endpoint checking catc_probe() fills three URBs with hardcoded endpoint pipes without verifying the endpoint descriptors: - usb_sndbulkpipe(usbdev, 1) and usb_rcvbulkpipe(usbdev, 1) for TX/RX - usb_rcvintpipe(usbdev, 2) for interrupt status A malformed USB device can present these endpoints with transfer types that differ from what the driver assumes. Add a catc_usb_ep enum for endpoint numbers, replacing magic constants throughout. Add usb_check_bulk_endpoints() and usb_check_int_endpoints() calls after usb_set_interface() to verify endpoint types before use, rejecting devices with mismatched descriptors at probe time. Similar to - commit 90b7f2961798 ("net: usb: rtl8150: enable basic endpoint checking") which fixed the issue in rtl8150.
Quoted source text, attributed separately from HOL analysis.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <eade522d3e6ac3f3bfb51bfa5b5b4b32bd0b846f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ac7739b78ded519e1d9919a814da3b34120bec8c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <163d04897e57633c5d2e69734e4e4b22bb63f50d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a488001a8197da4f9c413eec8f6acbff71c60145 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <36c28b028efba0f42218d41fed12c47ce217c1f1 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a42cfced8900d33d032c7ec338484855b61b8cc || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9e7021d2aeae57c323a6f722ed7915686cdcc123 | eade522d3e6ac3f3bfb51bfa5b5b4b32bd0b846f, ac7739b78ded519e1d9919a814da3b34120bec8c, 163d04897e57633c5d2e69734e4e4b22bb63f50d, a488001a8197da4f9c413eec8f6acbff71c60145, 36c28b028efba0f42218d41fed12c47ce217c1f1, 1a42cfced8900d33d032c7ec338484855b61b8cc, 9e7021d2aeae57c323a6f722ed7915686cdcc123 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: net: usb: catc: enable basic endpoint checking catc_probe() fills three URBs with hardcoded endpoint pipes without verifying the endpoint descriptors: - usb_sndbulkpipe(usbdev, 1) and usb_rcvbulkpipe(usbdev, 1) for TX/RX - usb_rcvintpipe(usbdev, 2) for interrupt status A malformed USB device can present these endpoints with transfer types that differ from what the driver assumes. Add a catc_usb_ep enum for endpoint numbers, replacing magic constants throughout. Add usb_check_bulk_endpoints() and usb_check_int_endpoints() calls after usb_set_interface() to verify endpoint types before use, rejecting devices with mismatched descriptors at probe time. Similar to - commit 90b7f2961798 ("net: usb: rtl8150: enable basic endpoint checking") which fixed the issue in rtl8150.
Quoted source text, attributed separately from HOL analysis.