CVE-2026-45923net: usb: catc: enable basic endpoint checking
- 5.5MediumCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Undergoing Analysis | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < eade522d3e6ac3f3bfb51bfa5b5b4b32bd0b846f
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < ac7739b78ded519e1d9919a814da3b34120bec8c
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 163d04897e57633c5d2e69734e4e4b22bb63f50d
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < a488001a8197da4f9c413eec8f6acbff71c60145
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 36c28b028efba0f42218d41fed12c47ce217c1f1
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 1a42cfced8900d33d032c7ec338484855b61b8cc
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 9e7021d2aeae57c323a6f722ed7915686cdcc123
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 5.10.252 – ≤ 5.10.*
- unaffected 6.1.165 – ≤ 6.1.*
- unaffected 6.6.128 – ≤ 6.6.*
- unaffected 6.12.75 – ≤ 6.12.*
- unaffected 6.18.14 – ≤ 6.18.*
- unaffected 6.19.4 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References7
- https://git.kernel.org/stable/c/eade522d3e6ac3f3bfb51bfa5b5b4b32bd0b846f (opens in a new tab)
- https://git.kernel.org/stable/c/ac7739b78ded519e1d9919a814da3b34120bec8c (opens in a new tab)
- https://git.kernel.org/stable/c/163d04897e57633c5d2e69734e4e4b22bb63f50d (opens in a new tab)
- https://git.kernel.org/stable/c/a488001a8197da4f9c413eec8f6acbff71c60145 (opens in a new tab)
- https://git.kernel.org/stable/c/36c28b028efba0f42218d41fed12c47ce217c1f1 (opens in a new tab)
- https://git.kernel.org/stable/c/1a42cfced8900d33d032c7ec338484855b61b8cc (opens in a new tab)
- https://git.kernel.org/stable/c/9e7021d2aeae57c323a6f722ed7915686cdcc123 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32389 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-45923)Record last updated .