{
  "cveId": "CVE-2026-98887",
  "url": "https://patchblox.com/security/cve/CVE-2026-98887",
  "summary": "CVE-2026-98887 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2026-98887, released October 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "wifi: mac80211_hwsim: reject undersized HWSIM_ATTR_TX_INFO",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  wifi: mac80211_hwsim: reject undersized HWSIM_ATTR_TX_INFO  hwsim_tx_info_frame_received_nl() casts the HWSIM_ATTR_TX_INFO payload to a struct hwsim_tx_rate * and unconditionally reads IEEE80211_TX_MAX_RATES entries (8 bytes) from it. The policy only bounds the attribute from above (NLA_BINARY .len is a maximum) and the op sets GENL_DONT_VALIDATE_STRICT, so a short or zero-length attribute is accepted and the loop reads past the payload.  Require the exact length in the policy, so a malformed attribute is rejected before the handler runs.",
  "published": "2026-10-23T12:18:22Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "epss": 0.00213,
  "epssPercentile": 0.11663,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98887",
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  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
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}