CVE-2026-74340

🗓️ 15 Aug 2026 05:58:30Reported by LinuxType

wcn36xx driver reads rsp->count past flexible array bounds, causing heap OOB read from firmware message.

Reporter	Title	Published	Views	Family All 6
Cvelist	CVE-2026-74340 wifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INFO indication	15 Aug 202605:58	–	cvelist
Debian CVE	CVE-2026-74340	15 Aug 202600:00	–	debiancve
EUVD	EUVD-2026-59487	15 Aug 202605:58	–	euvd
NVD	CVE-2026-74340	15 Aug 202606:22	–	nvd
OSV	DEBIAN-CVE-2026-74340	15 Aug 202606:22	–	osv
Positive Technologies	PT-2026-72776	15 Aug 202600:00	–	ptsecurity

Vulners

CNA

Node

linux linux_kernelRange4.11–5.10.261

linux linux_kernelRange5.11.0–5.15.212

linux linux_kernelRange5.16.0–6.1.178

linux linux_kernelRange6.2.0–6.6.145

linux linux_kernelRange6.7.0–6.12.97

linux linux_kernelRange6.13.0–6.18.40

linux linux_kernelRange6.19.0–7.1.5

linux linux_kernelRange7.2.0–7.2-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wireless/ath/wcn36xx/smd.c"
    ],
    "versions": [
      {
        "version": "43efa3c0f241e04862be8e6a68ff765d36cde1ba",
        "lessThan": "22b0b8572a64362531dd0ed499b75e16282aeb2b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "43efa3c0f241e04862be8e6a68ff765d36cde1ba",
        "lessThan": "3cf92b44c4fb88a5e8de8733a4494c0956606bca",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "43efa3c0f241e04862be8e6a68ff765d36cde1ba",
        "lessThan": "0907c06dccae9e3c8d5a68eb9014beec73a36e79",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "43efa3c0f241e04862be8e6a68ff765d36cde1ba",
        "lessThan": "64228dfc4247aca178c01e5a37af7d8dcc7a6089",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "43efa3c0f241e04862be8e6a68ff765d36cde1ba",
        "lessThan": "23d210877968657bd07e1a517e0b516db20a1d80",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "43efa3c0f241e04862be8e6a68ff765d36cde1ba",
        "lessThan": "f03782f7f41f2afee5076a1ef08ced5649218771",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "43efa3c0f241e04862be8e6a68ff765d36cde1ba",
        "lessThan": "f987efff29a5fe45320ea5991c9d5cb98b676953",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "43efa3c0f241e04862be8e6a68ff765d36cde1ba",
        "lessThan": "df2187acfca6c6cca372c5d35f42394d9c270b09",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wireless/ath/wcn36xx/smd.c"
    ],
    "versions": [
      {
        "version": "4.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.261",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.212",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.97",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/22b0b8572a64362531dd0ed499b75e16282aeb2b
git	www.git.kernel.org/stable/c/23d210877968657bd07e1a517e0b516db20a1d80
git	www.git.kernel.org/stable/c/0907c06dccae9e3c8d5a68eb9014beec73a36e79
git	www.git.kernel.org/stable/c/df2187acfca6c6cca372c5d35f42394d9c270b09
git	www.git.kernel.org/stable/c/3cf92b44c4fb88a5e8de8733a4494c0956606bca
git	www.git.kernel.org/stable/c/f03782f7f41f2afee5076a1ef08ced5649218771
git	www.git.kernel.org/stable/c/f987efff29a5fe45320ea5991c9d5cb98b676953
git	www.git.kernel.org/stable/c/64228dfc4247aca178c01e5a37af7d8dcc7a6089

15 Aug 2026 06:22Current

5.3Medium risk

Vulners AI Score5.3

EPSS0.00176