VulnerabilityPublished 17 Sep 2026Updated 21 Oct 2026

CVE-2026-93129: Linux kernel · platform/x86: dell-wmi-base: Fix handling of ultra performance key

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in adfd6846bea13667ff28f8aaf00c32fbd69825ab : update Linux kernel when convenient.

Data as of 26 Oct 2026, 15:59 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 adfd6846bea13667ff28f8aaf00c32fbd69825ab, ace1a687ea9ea70d17e3089ca173acfa1ec24412, 30674a7bbf20311a0c4edd5edb9526ef1eecc692 +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 ≥ 5fbd827eb9c224c33a5f263ee543a75fe957faa3, < adfd6846bea13667ff28f8aaf00c32fbd69825ab	Fixed in adfd6846bea13667ff28f8aaf00c32fbd69825ab
LinuxLinux	Affected ≥ 5fbd827eb9c224c33a5f263ee543a75fe957faa3, < ace1a687ea9ea70d17e3089ca173acfa1ec24412	Fixed in ace1a687ea9ea70d17e3089ca173acfa1ec24412
LinuxLinux	Affected ≥ 5fbd827eb9c224c33a5f263ee543a75fe957faa3, < 30674a7bbf20311a0c4edd5edb9526ef1eecc692	Fixed in 30674a7bbf20311a0c4edd5edb9526ef1eecc692
LinuxLinux	Affected ≥ 5fbd827eb9c224c33a5f263ee543a75fe957faa3, < 392c19faec6bf4cb72fb02322e2a61e198dd8f72	Fixed in 392c19faec6bf4cb72fb02322e2a61e198dd8f72
LinuxLinux	Affected ≥ 5fbd827eb9c224c33a5f263ee543a75fe957faa3, < 16a82add1918d3aae1e0b68c0a983b6fc64f5062	Fixed in 16a82add1918d3aae1e0b68c0a983b6fc64f5062
LinuxLinux	Affected =5.16	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-base: Fix handling of ultra performance key The commit message of commit 5fbd827eb9c2 ("platform/x86: dell-wmi: Recognise or support new switches") states that the ultra performance key contains additional data after the type and code fields. The event data passed to dell_wmi_process_key() is already parsed, so "buffer" already starts after those two fields. Use the correct index for accessing the first data field to avoid a potential buffer overread.

References

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