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CVE-2026-98944

HIGHCVSS 7.8/10EPSS 0.18%

Last modified

CVE-2026-98944 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.18%

7.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 385a4886778f6d6e61eff1d4d295af332d7130e1, < 6e44418d3a06f023877959cc6dd7386ec7f64d59; >= 385a4886778f6d6e61eff1d4d295af332d7130e1, < bdfad7759fef1a5d8be9bacee3c72ce40f148b63; >= 385a4886778f6d6e61eff1d4d295af332d7130e1, < 39568571aee4f5499a6d254812fe4b75dc3d4ace; >= 385a4886778f6d6e61eff1d4d295af332d7130e1, < 3c2f97343d4df2a75747f4c79effa0587509888f; >= 385a4886778f6d6e61eff1d4d295af332d7130e1, < 2b15e10aff95c78dbacc4fa32fa90c9098213e03; >= 385a4886778f6d6e61eff1d4d295af332d7130e1, < cf71a6ee1d4e36b8e65b81c064e2797a10247280; >= 385a4886778f6d6e61eff1d4d295af332d7130e1, < c06cf54fe99b8c6bcf2017bb076c0e3918608cea; >= 385a4886778f6d6e61eff1d4d295af332d7130e1, < 6f9b740c31ba7e061b2ebb330d9a3d63f1358f29; fb87a92b43961c89bf4a115d8a700885d8959cb1; >= 4.19.6, < 4.20
LinuxLinux4.20

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98944?
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.
How severe is CVE-2026-98944?
CVE-2026-98944 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-98944?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST