CVE-2026-63956
highIn the Linux kernel, the following vulnerability has been resolved: USB: serial: cypress_m8: fix memory corruption with small endpoint Make sure that the int…
Vendor / product: Linux — linux kernel
In the Linux kernel, the following vulnerability has been resolved: USB: serial: cypress_m8: fix memory corruption with small endpoint Make sure that the interrupt-out endpoint max packet size is at least eight bytes to avoid user-controlled slab corruption or NULL-pointer dereference should a malicious device report a smaller size.
CVSS
7.8
7.8 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-07-19 16:17
Modified: 2026-10-30 14:32
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-30 14:40 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
linux / linux_kernel ≥2.6.26 <5.10.259, ≥5.11 <5.15.210, ≥5.16 <6.1.176, ≥6.2 <6.6.143, ≥6.7 <6.12.93, ≥6.13 <6.18.35
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://git.kernel.org/stable/c/1ef25704bd3b625fd151c09feee459479f71ee64
Patch / mitigation: https://git.kernel.org/stable/c/284105c40fc31fff90cdab8a0377aaeb92f87f0e
Patch / mitigation: https://git.kernel.org/stable/c/4bcaa59f403dbde6328604a500d65ee8d40975d9
Patch / mitigation: https://git.kernel.org/stable/c/4fcb22218f0a7229b7ce3b3952fb644def293fa5
Patch / mitigation: https://git.kernel.org/stable/c/52e18ae0c47c5c89e18fcd8022f287f7cc8802ec
Patch / mitigation: https://git.kernel.org/stable/c/6c13f3bb652bc8665e709ba07122612586aea648
Patch / mitigation: https://git.kernel.org/stable/c/ad3d1628a46134276546d7a12fedf04be9979158
Patch / mitigation: https://git.kernel.org/stable/c/e1a9d791fd66ab2431b9e6f6f835823809869047
References
- https://git.kernel.org/stable/c/1ef25704bd3b625fd151c09feee459479f71ee64 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/284105c40fc31fff90cdab8a0377aaeb92f87f0e 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/4bcaa59f403dbde6328604a500d65ee8d40975d9 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/4fcb22218f0a7229b7ce3b3952fb644def293fa5 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/52e18ae0c47c5c89e18fcd8022f287f7cc8802ec 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/6c13f3bb652bc8665e709ba07122612586aea648 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/ad3d1628a46134276546d7a12fedf04be9979158 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/e1a9d791fd66ab2431b9e6f6f835823809869047 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Data sources
NVD CVE API 2.0 — fetched 2026-10-30 14:40 UTC · record ↗