High 7.8Published Oct 23, 2026

CVE-2026-98944HID: steam: Refactor registration

Updated under an hour ago (Oct 26, 2026, 8:23 PM ET)

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It affects Linux. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.21%, higher than 10% of scored CVEs.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: HID: steam: Refactor registration This refactors and simplifies the registration/unregistration flow. Since we now only perform registration when the client isn't opened anymore, the logic for handling that can be removed, and the rest of the function streamlined. We also remove the previous assumption that we have a serial number to show we're registered, replacing it with a single purpose boolean. In a previous refactor the code for unregistering a battery if later registration steps failed was accidentally left out. As a result, a lingering power_supply object could get left over after the steam object was torn down. This is also fixed here.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.21% (percentile 10)
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 23, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	385a4886778f6d6e61eff1d4d295af332d7130e1 builds before 3c2f97343d4df2a75747f4c79effa0587509888f; 385a4886778f6d6e61eff1d4d295af332d7130e1 builds before 2b15e10aff95c78dbacc4fa32fa90c9098213e03; from 385a4886778f6d6e61eff1d4d295af332d7130e1 before cf71a6ee1d4e36b8e65b81c064e2797a10247280; from 385a4886778f6d6e61eff1d4d295af332d7130e1 before c06cf54fe99b8c6bcf2017bb076c0e3918608cea; 385a4886778f6d6e61eff1d4d295af332d7130e1 builds before 6f9b740c31ba7e061b2ebb330d9a3d63f1358f29; fb87a92b43961c89bf4a115d8a700885d8959cb1; from 4.19.6 before 4.20	CNA record

References

References

https://git.kernel.org/stable/c/3c2f97343d4df2a75747f4c79effa0587509888f
https://git.kernel.org/stable/c/2b15e10aff95c78dbacc4fa32fa90c9098213e03
https://git.kernel.org/stable/c/cf71a6ee1d4e36b8e65b81c064e2797a10247280
https://git.kernel.org/stable/c/c06cf54fe99b8c6bcf2017bb076c0e3918608cea
https://git.kernel.org/stable/c/6f9b740c31ba7e061b2ebb330d9a3d63f1358f29

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.