VulnerabilityPublished 6 Oct 2026Updated 30 Oct 2026

CVE-2026-98193: Linux kernel · wifi: libipw: reject TKIP frames without a full MIC

Source GCVE Database

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Authoritative record:CVE-2026-98193· Medium

Not known to be exploited · fixed in f448b267968d0ee985e5927c868c8f858169ab34 : update Linux kernel when convenient.

Data as of 30 Oct 2026, 17:19 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in f448b267968d0ee985e5927c868c8f858169ab34, bb7ae8910cc886885aea95abb7c2e578a2341646, ac7c08626f67844336086cf563f417566b76f0d7 +5

Exploitation evidence

Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 30 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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.

ghsa-8rh9-27vf-9cwr

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ b453872c35cfcbdbf5a794737817f7d4e7b1b579, < f448b267968d0ee985e5927c868c8f858169ab34	Fixed in f448b267968d0ee985e5927c868c8f858169ab34
LinuxLinux	Affected ≥ b453872c35cfcbdbf5a794737817f7d4e7b1b579, < bb7ae8910cc886885aea95abb7c2e578a2341646	Fixed in bb7ae8910cc886885aea95abb7c2e578a2341646
LinuxLinux	Affected ≥ b453872c35cfcbdbf5a794737817f7d4e7b1b579, < ac7c08626f67844336086cf563f417566b76f0d7	Fixed in ac7c08626f67844336086cf563f417566b76f0d7
LinuxLinux	Affected ≥ b453872c35cfcbdbf5a794737817f7d4e7b1b579, < 0636970f31dd9099f98578a62335eb534be72e3a	Fixed in 0636970f31dd9099f98578a62335eb534be72e3a
LinuxLinux	Affected ≥ b453872c35cfcbdbf5a794737817f7d4e7b1b579, < 9442bf5ea83314ef9a8a33e6885da45a61d1474d	Fixed in 9442bf5ea83314ef9a8a33e6885da45a61d1474d
LinuxLinux	Affected ≥ b453872c35cfcbdbf5a794737817f7d4e7b1b579, < 9a7fb67364817710c96785ff86b71a2711ee92cb	Fixed in 9a7fb67364817710c96785ff86b71a2711ee92cb

AI-suggested

A fix has been applied in the Linux kernel to check for the presence of the full MIC before verification and to use consistent MIC length constants. Users should update to the fixed kernel versions once available. No additional mitigation steps are indicated.

Description

A vulnerability in the Linux kernel's libipw component related to TKIP frame processing has been fixed. The issue involved the libipw_michael_mic_verify() function incorrectly assuming the presence of a full eight-byte Michael MIC in TKIP frames. This could cause out-of-bounds reads when processing short TKIP frames lacking a full MIC.

References

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