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CVE-2026-80826

USB: c67x00: fix use-after-free in c67x00_add_iso_urb()

No known exploitation. EPSS puts it in the 9th percentile. Fixed versions are out.

CVSS —Not scoredEPSS percentile9th0.2% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix1 product4 fixed builds listed below
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OpenVAS · 5 checks

e.g. OID 1.3.6.1.4.1.25623.1.1.10.2026.0506

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Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • LinuxAffected: ≥ e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d, < e4039e9bebb528dd9cd7ac72aeaec529c26c355aUpgrade to: e4039e9bebb528dd9cd7ac72aeaec529c26c355aAffected: ≥ e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d, < ade18b4ce78a16558f4f435aece80082f6f7b64cUpgrade to: ade18b4ce78a16558f4f435aece80082f6f7b64cAffected: ≥ e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d, < bb572801290e25ec1c4753d14af35777303f5d6bUpgrade to: bb572801290e25ec1c4753d14af35777303f5d6bAffected: ≥ e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d, < 62cd519ab74cac499036cd88c11692f8f0d53e14Upgrade to: 62cd519ab74cac499036cd88c11692f8f0d53e14 + 5 more branchesStated by: CVE record

Versions as the sources state them. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

In the Linux kernel, the following vulnerability has been resolved: USB: c67x00: fix use-after-free in c67x00_add_iso_urb() When TD creation fails for the last packet of an isochronous URB, c67x00_add_iso_urb() gives the URB back before updating the endpoint scheduling state. c67x00_giveback_urb() frees the URB private data, and the completion callback may release the final URB reference. The following accesses to urbp->ep_data, urb->interval, and urbp->cnt can therefore use freed memory. Update next_frame and cnt before giving back the failed final packet, making the giveback the last operation that uses the URB and its private data.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS9th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.2% chance of exploitation activity in the next 30 days, which ranks it in the 9th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

4 events over 45 days, from the signal feeds we watch.

  1. Record updated
  2. OpenVAS check added
  3. Publishedrecord updated

Affected products

Sources

References in the record

And 6 more references. See all after sign-in

In the news

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