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CVE-2026-98889

HIGHCVSS 7.8/10EPSS 0.17%

Last modified

CVE-2026-98889 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix sched scan IE sizing Scheduled scan built the probe request before iwl_mvm_scan_fits(), so oversized IEs could be copied into the fixed preq buffer before length validation. Move iwl_mvm_build_scan_probe() after the fits check. Also advertise max_sched_scan_ie_len using iwl_mvm_max_scan_ie_len() so userspace limits account for driver-inserted DS/TPC bytes.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix sched scan IE sizing Scheduled scan built the probe request before iwl_mvm_scan_fits(), so oversized IEs could be copied into the fixed preq buffer before length validation. Move iwl_mvm_build_scan_probe() after the fits check. Also advertise max_sched_scan_ie_len using iwl_mvm_max_scan_ie_len() so userspace limits account for driver-inserted DS/TPC bytes.

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
0.17%

6.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

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

VendorProductVersions
LinuxLinux>= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c, < f2268060e99f94314b9988dfa17393c2694fa9b2; >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c, < 358eca9a898ad4cce7453e9dcfd005d019a2b01f; >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c, < 05f79cea3b15cfe600b205ddcfd51ebee15d908a; >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c, < a24417478f90e9f1a4ea24cd4b784afccb56fbae; >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c, < 0a63f98e5163a2ec2822dfb691ee5a6094de08ec; >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c, < 4f155d262b31b9b17e0f9856bdabe0968eb4930f
LinuxLinux5.11

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98889?
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix sched scan IE sizing Scheduled scan built the probe request before iwl_mvm_scan_fits(), so oversized IEs could be copied into the fixed preq buffer before length validation. Move iwl_mvm_build_scan_probe() after the fits check. Also advertise max_sched_scan_ie_len using iwl_mvm_max_scan_ie_len() so userspace limits account for driver-inserted DS/TPC bytes.
How severe is CVE-2026-98889?
CVE-2026-98889 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-98889?
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