VulnerabilityPublished 17 Sep 2026Updated 21 Oct 2026

CVE-2026-90328: Linux kernel · HID: steam: Reject short reads

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in f694ea0ead544080949e409a7c6885ee1fc77a98 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f694ea0ead544080949e409a7c6885ee1fc77a98, cbcc9b0ccbbd33125ffc9479fb8f69ac969fe55c, 93c5cc35bcd9f62db589a21945b49691dccdd99d +2

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ c164d6abf3841ffacfdb757c10616f9cb1f67276, < f694ea0ead544080949e409a7c6885ee1fc77a98	Fixed in f694ea0ead544080949e409a7c6885ee1fc77a98
LinuxLinux	Affected ≥ c164d6abf3841ffacfdb757c10616f9cb1f67276, < cbcc9b0ccbbd33125ffc9479fb8f69ac969fe55c	Fixed in cbcc9b0ccbbd33125ffc9479fb8f69ac969fe55c
LinuxLinux	Affected ≥ c164d6abf3841ffacfdb757c10616f9cb1f67276, < 93c5cc35bcd9f62db589a21945b49691dccdd99d	Fixed in 93c5cc35bcd9f62db589a21945b49691dccdd99d
LinuxLinux	Affected ≥ c164d6abf3841ffacfdb757c10616f9cb1f67276, < 37cb84b992718924dc334ce584c703333a6a4217	Fixed in 37cb84b992718924dc334ce584c703333a6a4217
LinuxLinux	Affected ≥ c164d6abf3841ffacfdb757c10616f9cb1f67276, < 33ff7b49c38b39b1f3d27db508ac0720fb25c08a	Fixed in 33ff7b49c38b39b1f3d27db508ac0720fb25c08a
LinuxLinux	Affected =4.18	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: HID: steam: Reject short reads Steam Controller FEATURE reports encode the size of the message in the message itself. Previously we were trusting that the size reported matched the size we actually read, leading to a potential issue with short reads. Instead, we should actually verify the length of the read.

References

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