CVE-2026-68471
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
In the Linux kernel, the ieee80211_mle_common_size() function has an issue with validating the common info length in MLE elements. For Reconfiguration and Priority Access types, the length is not correctly checked, potentially leading to improper reads. The fix accounts for the Reconfiguration length and validates the length for all known MLE types.
Risk Assessment
Improper validation may lead to out-of-bounds reads, which could be exploited to compromise system integrity or cause crashes.
Recommendation
Apply the Linux kernel update containing the fix for CVE-2026-68471. Regularly update systems to avoid exploitation of this vulnerability.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: wifi: ieee80211: validate MLE common info length ieee80211_mle_common_size() uses the first common-info octet as the common information length for all known MLE types. However, ieee80211_mle_size_ok() only validates that octet for Basic, Probe Request, and TDLS MLEs. Reconfiguration MLEs also skipped the length octet when calculating the minimum common size, and Priority Access MLEs skipped validation of the advertised common information length. Account for the Reconfiguration common-info length octet and validate the advertised common information length for all known MLE types. Keep unknown-type handling unchanged. [remove now misleading comment]