Affects Linux kernel HID subsystem; widely deployed; could disrupt IT infrastructure.
CVE-2026-43048
Kernel HID OOB risk in report handling; fix removes memset.
Is CVE-2026-43048 being exploited?
Not confirmed. CVE-2026-43048 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 0.24% probability of exploitation in the next 30 days.
How severe is CVE-2026-43048?
CVE-2026-43048 is rated High with a CVSS score of 8.8. 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-2026-43048?
Yes. A fix has been recorded for CVE-2026-43048. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-43048 affect?
CVE-2026-43048 affects Linux kernel (HID subsystem). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-43048?
Apply kernel update containing HID fix
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local attacker/process can trigger HID report OOB read/write, risking memory corruption or kernel crash.
Patch when possible
- affected>= cd6104572bca9e4afe0dcdb8ecd65ef90b01297b and < 8f71034649738fdeb6859b8d6cddf132024fac06
- affected>= cd6104572bca9e4afe0dcdb8ecd65ef90b01297b and < bd6e1d0230cca9575f5d118148f51e2a56b5373f
- affected>= cd6104572bca9e4afe0dcdb8ecd65ef90b01297b and < 0a3fe972a7cb1404f693d6f1711f32bc1d244b1c
- affected2.6.15
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.