CVE-2026-74333
Kernel out‑of‑bounds read in AMD ASoC acp-sdw-legacy driver causing potential crash/memory corruption
Is CVE-2026-74333 being exploited?
Not confirmed. CVE-2026-74333 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 0.14% probability of exploitation in the next 30 days.
How severe is CVE-2026-74333?
CVE-2026-74333 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-2026-74333?
Yes. A fix has been recorded for CVE-2026-74333. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-74333 affect?
CVE-2026-74333 affects Linux kernel (ASoC amd acp-sdw-legacy driver), AMD systems with SoundWire/ACP SDW legacy support. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-74333?
Install the patched kernel release and reboot; restrict untrusted local/device access until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local or malicious device/driver can trigger a kernel OOB read causing crash (DoS) and potential memory corruption that may enable privilege escalation.
Patch when possible
- affected>= 2981d9b0789c44b7375e7d599caf71bd843afc9e and < 1279bdab5fa1f28c168e54215db506e87c6fac1e
- affected>= 2981d9b0789c44b7375e7d599caf71bd843afc9e and < 0230471eef5902207516851dcd47c559571dded2
- affected>= 2981d9b0789c44b7375e7d599caf71bd843afc9e and < d49ecdf327cc91062d2f80996a163cf65fda1e60
- affected6.13
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.