CVE-2026-63906
Linux kernel musb (omap2430) use-after-free in omap2430_probe()
Is CVE-2026-63906 being exploited?
Not confirmed. CVE-2026-63906 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.18% probability of exploitation in the next 30 days.
How severe is CVE-2026-63906?
CVE-2026-63906 is rated High with a CVSS score of 8.4. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-63906?
Yes. A fix has been recorded for CVE-2026-63906. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-63906 affect?
CVE-2026-63906 affects Linux kernel (musb omap2430 driver), Devices using TI OMAP2430 SoC, Embedded/IoT products with affected kernel builds. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-63906?
Apply upstream/vendor kernel patch or upgrade; block untrusted USB devices until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Use-after-free can be triggered around USB probe, enabling kernel crash or arbitrary kernel code execution leading to local privilege escalation.
Patch when possible
- affected>= 22b60658a90260e3fbd57824e3afe5682c6afcf5 and < 632fd888fe33083927e29ef651ac1aba345edd9e
- affected>= ffbe2feac59b37c8dc536727552b4f375e1b9aec and < b987f380620b38c84f054d5ff5c05861a7c2203b
- affected>= ffbe2feac59b37c8dc536727552b4f375e1b9aec and < 27e62532228dc42367bb43ebbcd7bf49d8db2b0d
- affected>= ffbe2feac59b37c8dc536727552b4f375e1b9aec and < 69f9f2b30af03d9b6e83f78fb0f734b6066d4678
- affected>= ffbe2feac59b37c8dc536727552b4f375e1b9aec and < d53e4c41331f57b9fd78cbf3e480c6ce20aea07b
- affected>= ffbe2feac59b37c8dc536727552b4f375e1b9aec and < e194ce048f5a6c549b3a23a8c568c6470f40f772
- affectedfed43efc00ba6ac8c6b95828cd5acfa3d45eca4d
- affected>= 6.1.2 and < 6.1.176
- affected>= 6.0.16 and < 6.1
- affected6.2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.