CVE-2026-74410
rtw88 PCIe driver OOB read from RX descriptor may leak kernel memory or crash.
Is CVE-2026-74410 being exploited?
Not confirmed. CVE-2026-74410 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 0.28% probability of exploitation in the next 30 days.
How severe is CVE-2026-74410?
CVE-2026-74410 is rated High with a CVSS score of 8.1. 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-2026-74410?
Yes. A fix has been recorded for CVE-2026-74410. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-74410 affect?
CVE-2026-74410 affects Linux kernel rtw88 driver, Realtek PCIe Wi‑Fi devices, Kernels with rtw_pci_rx_napi(). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-74410?
Install kernel/driver updates promptly; avoid/untrusted Wi‑Fi until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker via crafted Wi‑Fi frames can trigger OOB read from DMA buffer, causing kernel info disclosure or crash (DoS).
Patch when possible
- affected>= e3037485c68ec1a299ff41160d8fedbd4abc29b9 and < 913bd7d3d3d842b5c1d2b908a0201efa8fc79793
- affected>= e3037485c68ec1a299ff41160d8fedbd4abc29b9 and < 45abc14ab3f15da7d689f1a8809c1a01240a94d9
- affected>= e3037485c68ec1a299ff41160d8fedbd4abc29b9 and < 08193e733e5d4790e6c937af86d78793b02709be
- affected>= e3037485c68ec1a299ff41160d8fedbd4abc29b9 and < 6a3c384393d3f0b41669ed5a2e88744aad9d87c8
- affected>= e3037485c68ec1a299ff41160d8fedbd4abc29b9 and < 26c183a86ea4dd1f2ff90c6f783649e7f5722a10
- affected>= e3037485c68ec1a299ff41160d8fedbd4abc29b9 and < 01155ded5d4dad61840a9a3c33ab56778ef1f100
- affected>= e3037485c68ec1a299ff41160d8fedbd4abc29b9 and < 1554fa522f16ec7c5c342ad33fe734eeb6eb2452
- affected>= e3037485c68ec1a299ff41160d8fedbd4abc29b9 and < 6e76e9ed273dfb4b3333a5ebbb94958cc5752ab6
- affected5.2
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.