{"id":"CVE-2025-39957","title":"wifi: mac80211: increase scan_ies_len for S1G","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: increase scan_ies_len for S1G\n\nCurrently the S1G capability element is not taken into account\nfor the scan_ies_len, which leads to a buffer length valid…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 0333a81bc83431d7f90391d38aa09e856c5e5b25 < 93e063f15e17acb8cd6ac90c8f0802c2624e1a74","Linux >= 0333a81bc83431d7f90391d38aa09e856c5e5b25 < 32adb020b0c32939da1322dcc87fc0ae2bc935d1","Linux >= 0333a81bc83431d7f90391d38aa09e856c5e5b25 < 0dbad5f5549e54ac269cc04ce89f212892a98cab","Linux >= 0333a81bc83431d7f90391d38aa09e856c5e5b25 < 7e2f3213e85eba00acb4cfe6d71647892d63c3a1","Linux 6.4"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T21:55:06.430509Z"},"published":"2025-10-09","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:02:33.942Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-39957","references":[{"url":"https://git.kernel.org/stable/c/93e063f15e17acb8cd6ac90c8f0802c2624e1a74"},{"url":"https://git.kernel.org/stable/c/32adb020b0c32939da1322dcc87fc0ae2bc935d1"},{"url":"https://git.kernel.org/stable/c/0dbad5f5549e54ac269cc04ce89f212892a98cab"},{"url":"https://git.kernel.org/stable/c/7e2f3213e85eba00acb4cfe6d71647892d63c3a1"}],"tags":["cve.org"],"epss":0.00154,"epssPercentile":0.04459,"ingestedAt":"2026-10-15T22:48:25.532Z","slug":"CVE-2025-39957","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: increase scan_ies_len for S1G\n\nCurrently the S1G capability element is not taken into account\nfor the scan_ies_len, which leads to a buffer length validation\nfailure in ieee80211_prep_hw_scan() and subsequent WARN in\n__ieee80211_start_scan(). This prevents hw scanning from functioning.\nTo fix ensure we accommodate for the S1G capability length.\n\n## Affected\n\n- `Linux >= 0333a81bc83431d7f90391d38aa09e856c5e5b25 < 93e063f15e17acb8cd6ac90c8f0802c2624e1a74`\n- `Linux >= 0333a81bc83431d7f90391d38aa09e856c5e5b25 < 32adb020b0c32939da1322dcc87fc0ae2bc935d1`\n- `Linux >= 0333a81bc83431d7f90391d38aa09e856c5e5b25 < 0dbad5f5549e54ac269cc04ce89f212892a98cab`\n- `Linux >= 0333a81bc83431d7f90391d38aa09e856c5e5b25 < 7e2f3213e85eba00acb4cfe6d71647892d63c3a1`\n- `Linux 6.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}