CVE-2026-63961
mediumIn the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: validate count before reading Status Update VDO A broke…
Vendor / product: Linux — linux kernel
In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: validate count before reading Status Update VDO A broken/malicious device can send the incorrect count for a status update VDO, which will cause the kernel to read uninitialized stack data and send it off elsewhere. Fix this up by correctly verifying the count for the update object.
CVSS
5.5
5.5 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-07-19 16:17
Modified: 2026-10-30 14:31
NVD status: Analyzed
Last synced 3 days 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 ≥4.19 <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)
NVD-CWE-noinfo
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/64bd6ccc5799f8473d1f37d4d8f53093dfec5c02
Patch / mitigation: https://git.kernel.org/stable/c/6ffdbcd7a02f3af8fff9b6519830369f574ed44c
Patch / mitigation: https://git.kernel.org/stable/c/70e7045849e954e56dcbf441b6330e66bc996306
Patch / mitigation: https://git.kernel.org/stable/c/74aabe9ea30fdfba924fce9594e6aa69a596a4bb
Patch / mitigation: https://git.kernel.org/stable/c/77a759ec30bc5fb0dd9c867b711d0acfed6c7faa
Patch / mitigation: https://git.kernel.org/stable/c/8a18f896e667df491331371b55d4ad644dc51d60
Patch / mitigation: https://git.kernel.org/stable/c/b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9b
Patch / mitigation: https://git.kernel.org/stable/c/dd7118c010f324497c275e8fd7a35c9baaa2a00f
References
- https://git.kernel.org/stable/c/64bd6ccc5799f8473d1f37d4d8f53093dfec5c02 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/6ffdbcd7a02f3af8fff9b6519830369f574ed44c 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/70e7045849e954e56dcbf441b6330e66bc996306 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/74aabe9ea30fdfba924fce9594e6aa69a596a4bb 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/77a759ec30bc5fb0dd9c867b711d0acfed6c7faa 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/8a18f896e667df491331371b55d4ad644dc51d60 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9b 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/dd7118c010f324497c275e8fd7a35c9baaa2a00f 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Data sources
NVD CVE API 2.0 — fetched 2026-10-30 14:40 UTC · record ↗