CVE-2026-74408 (GCVE-0-2026-74408)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:59 – Updated: 2026-10-16 19:05
VLAI
Title
wifi: ath9k: fix OOB access from firmware tx status queue ID
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: fix OOB access from firmware tx status queue ID ath_tx_edma_tasklet() accesses sc->tx.txq[ts.qid] where ts.qid is a 4-bit hardware field (0-15), but the txq array only has ATH9K_NUM_TX_QUEUES (10) entries. A qid >= 10 causes an OOB array access. Add a bounds check on ts.qid before using it as an array index.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 18:55 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6992 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: fce041beb03f93c7a771f0b4b6c45bb71ef90901 , < fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54 (git)
Affected: fce041beb03f93c7a771f0b4b6c45bb71ef90901 , < 734db72d55ca578a344dfa33e30145032c074b25 (git)
Affected: fce041beb03f93c7a771f0b4b6c45bb71ef90901 , < f5931d06b45ed402572bfe5832fff15864ef5481 (git)
Affected: fce041beb03f93c7a771f0b4b6c45bb71ef90901 , < 46ca1451f61b598f45cb5259e066d305444d95fc (git)
Affected: fce041beb03f93c7a771f0b4b6c45bb71ef90901 , < a9e055ac62cb3fcea262d4b687ec73eed82b3379 (git)
Affected: fce041beb03f93c7a771f0b4b6c45bb71ef90901 , < 5435fd3edcb11c7cc4002847c83e9a50b49284dc (git)
Affected: fce041beb03f93c7a771f0b4b6c45bb71ef90901 , < 336d4c8cd9b1646060ee690c881d465dfc09c6c0 (git)
Affected: fce041beb03f93c7a771f0b4b6c45bb71ef90901 , < 7ce2f118a2389e8f0a64068c6fe7cc7d40639be0 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.1
Unaffected: 0 , < 3.1 (semver)
Unaffected: 5.10.261 , ≤ 5.10.* (semver)
Unaffected: 5.15.212 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-74408",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T18:55:57.152844Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-16T19:05:43.633Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath9k/xmit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54",
              "status": "affected",
              "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
              "versionType": "git"
            },
            {
              "lessThan": "734db72d55ca578a344dfa33e30145032c074b25",
              "status": "affected",
              "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
              "versionType": "git"
            },
            {
              "lessThan": "f5931d06b45ed402572bfe5832fff15864ef5481",
              "status": "affected",
              "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
              "versionType": "git"
            },
            {
              "lessThan": "46ca1451f61b598f45cb5259e066d305444d95fc",
              "status": "affected",
              "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
              "versionType": "git"
            },
            {
              "lessThan": "a9e055ac62cb3fcea262d4b687ec73eed82b3379",
              "status": "affected",
              "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
              "versionType": "git"
            },
            {
              "lessThan": "5435fd3edcb11c7cc4002847c83e9a50b49284dc",
              "status": "affected",
              "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
              "versionType": "git"
            },
            {
              "lessThan": "336d4c8cd9b1646060ee690c881d465dfc09c6c0",
              "status": "affected",
              "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
              "versionType": "git"
            },
            {
              "lessThan": "7ce2f118a2389e8f0a64068c6fe7cc7d40639be0",
              "status": "affected",
              "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath9k/xmit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.1"
            },
            {
              "lessThan": "3.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: fix OOB access from firmware tx status queue ID\n\nath_tx_edma_tasklet() accesses sc-\u003etx.txq[ts.qid] where ts.qid is a\n4-bit hardware field (0-15), but the txq array only has\nATH9K_NUM_TX_QUEUES (10) entries. A qid \u003e= 10 causes an OOB array\naccess.\n\nAdd a bounds check on ts.qid before using it as an array index."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - Exploitation requires sending 802.11 frames over WiFi to a victim using an EDMA-capable ath9k device (routers, embedded APs, laptops); TX completion interrupts from that traffic reach ath_tx_edma_tasklet() via ath_isr/ath9k_interrupt.\nAC:L - An adjacent attacker can repeatedly induce TX completions and error/status conditions with crafted or high-volume 802.11 traffic; they control timing and load on both sides of the race, making invalid firmware qid values (10-15) reachable without conditions outside attacker influence.\nPR:N - No local account or kernel privileges are required; unauthenticated adjacent WiFi frames (probes, data, deauth/flood) cause the victim radio to transmit and process firmware TX status reports on the interrupt path.\nUI:N - No victim interaction is needed beyond the device having WiFi active, which is the normal operating state for routers, phones, and IoT APs using ath9k hardware.\nS:U - Impact is confined to kernel memory corruption and privilege escalation or denial of service on the affected host; it does not cross VM, container, or IOMMU security boundaries.\nC:H - Out-of-bounds indexing of sc-\u003etx.txq[ts.qid] reads adjacent ath_softc/ath_tx fields as struct ath_txq (spinlocks, list heads, DMA metadata), constituting an unbounded OOB kernel memory read exploitable for information disclosure.\nI:H - The OOB txq pointer is dereferenced for spin_lock_bh, list_head manipulation, and ath_tx_process_buffer(), writing through misaligned kernel structures and enabling heap corruption and potential arbitrary code execution.\nA:H - Locking and list operations on memory interpreted as the wrong ath_txq can cause kernel oops, panic, or hang, and repeated adjacent triggering can sustain denial of service on the wireless host."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:46:51.612Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54"
        },
        {
          "url": "https://git.kernel.org/stable/c/734db72d55ca578a344dfa33e30145032c074b25"
        },
        {
          "url": "https://git.kernel.org/stable/c/f5931d06b45ed402572bfe5832fff15864ef5481"
        },
        {
          "url": "https://git.kernel.org/stable/c/46ca1451f61b598f45cb5259e066d305444d95fc"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9e055ac62cb3fcea262d4b687ec73eed82b3379"
        },
        {
          "url": "https://git.kernel.org/stable/c/5435fd3edcb11c7cc4002847c83e9a50b49284dc"
        },
        {
          "url": "https://git.kernel.org/stable/c/336d4c8cd9b1646060ee690c881d465dfc09c6c0"
        },
        {
          "url": "https://git.kernel.org/stable/c/7ce2f118a2389e8f0a64068c6fe7cc7d40639be0"
        }
      ],
      "title": "wifi: ath9k: fix OOB access from firmware tx status queue ID",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74408",
    "datePublished": "2026-08-15T05:59:16.701Z",
    "dateReserved": "2026-08-15T05:44:03.892Z",
    "dateUpdated": "2026-10-16T19:05:43.633Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-74408",
      "date": "2026-10-20",
      "epss": "0.00412",
      "percentile": "0.34084"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/ath/ath9k/xmit.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54",
                    "status": "affected",
                    "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "734db72d55ca578a344dfa33e30145032c074b25",
                    "status": "affected",
                    "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "f5931d06b45ed402572bfe5832fff15864ef5481",
                    "status": "affected",
                    "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "46ca1451f61b598f45cb5259e066d305444d95fc",
                    "status": "affected",
                    "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "a9e055ac62cb3fcea262d4b687ec73eed82b3379",
                    "status": "affected",
                    "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "5435fd3edcb11c7cc4002847c83e9a50b49284dc",
                    "status": "affected",
                    "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "336d4c8cd9b1646060ee690c881d465dfc09c6c0",
                    "status": "affected",
                    "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "7ce2f118a2389e8f0a64068c6fe7cc7d40639be0",
                    "status": "affected",
                    "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/ath/ath9k/xmit.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "3.1"
                  },
                  {
                    "lessThan": "3.1",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.261",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.212",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.178",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.145",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.97",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.40",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.1.*",
                    "status": "unaffected",
                    "version": "7.1.5",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.2",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: fix OOB access from firmware tx status queue ID\n\nath_tx_edma_tasklet() accesses sc-\u003etx.txq[ts.qid] where ts.qid is a\n4-bit hardware field (0-15), but the txq array only has\nATH9K_NUM_TX_QUEUES (10) entries. A qid \u003e= 10 causes an OOB array\naccess.\n\nAdd a bounds check on ts.qid before using it as an array index."
          }
        ],
        "id": "CVE-2026-74408",
        "lastModified": "2026-10-16T20:17:26.257",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-74408",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T18:55:57.152844Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-08-15T06:22:42.837",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/336d4c8cd9b1646060ee690c881d465dfc09c6c0"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/46ca1451f61b598f45cb5259e066d305444d95fc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/5435fd3edcb11c7cc4002847c83e9a50b49284dc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/734db72d55ca578a344dfa33e30145032c074b25"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/7ce2f118a2389e8f0a64068c6fe7cc7d40639be0"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/a9e055ac62cb3fcea262d4b687ec73eed82b3379"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f5931d06b45ed402572bfe5832fff15864ef5481"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-20T22:18:22+00:00",
      "cve": "CVE-2026-74408",
      "id": "CVE-2026-74408",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: ath9k: fix OOB access from firmware tx status queue ID",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74408.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-74408",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-10-16T18:55:57.152844Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-16T18:55:57.691Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/ath/ath9k/xmit.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54",
                  "status": "affected",
                  "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                  "versionType": "git"
                },
                {
                  "lessThan": "734db72d55ca578a344dfa33e30145032c074b25",
                  "status": "affected",
                  "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                  "versionType": "git"
                },
                {
                  "lessThan": "f5931d06b45ed402572bfe5832fff15864ef5481",
                  "status": "affected",
                  "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                  "versionType": "git"
                },
                {
                  "lessThan": "46ca1451f61b598f45cb5259e066d305444d95fc",
                  "status": "affected",
                  "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                  "versionType": "git"
                },
                {
                  "lessThan": "a9e055ac62cb3fcea262d4b687ec73eed82b3379",
                  "status": "affected",
                  "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                  "versionType": "git"
                },
                {
                  "lessThan": "5435fd3edcb11c7cc4002847c83e9a50b49284dc",
                  "status": "affected",
                  "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                  "versionType": "git"
                },
                {
                  "lessThan": "336d4c8cd9b1646060ee690c881d465dfc09c6c0",
                  "status": "affected",
                  "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                  "versionType": "git"
                },
                {
                  "lessThan": "7ce2f118a2389e8f0a64068c6fe7cc7d40639be0",
                  "status": "affected",
                  "version": "fce041beb03f93c7a771f0b4b6c45bb71ef90901",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/ath/ath9k/xmit.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "3.1"
                },
                {
                  "lessThan": "3.1",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.261",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.212",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.178",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.145",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.97",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.18.*",
                  "status": "unaffected",
                  "version": "6.18.40",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "7.1.*",
                  "status": "unaffected",
                  "version": "7.1.5",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "7.2",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.261",
                      "versionStartIncluding": "3.1",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.212",
                      "versionStartIncluding": "3.1",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.178",
                      "versionStartIncluding": "3.1",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.145",
                      "versionStartIncluding": "3.1",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.97",
                      "versionStartIncluding": "3.1",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.18.40",
                      "versionStartIncluding": "3.1",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "7.1.5",
                      "versionStartIncluding": "3.1",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "7.2",
                      "versionStartIncluding": "3.1",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: fix OOB access from firmware tx status queue ID\n\nath_tx_edma_tasklet() accesses sc-\u003etx.txq[ts.qid] where ts.qid is a\n4-bit hardware field (0-15), but the txq array only has\nATH9K_NUM_TX_QUEUES (10) entries. A qid \u003e= 10 causes an OOB array\naccess.\n\nAdd a bounds check on ts.qid before using it as an array index."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "AV:A - Exploitation requires sending 802.11 frames over WiFi to a victim using an EDMA-capable ath9k device (routers, embedded APs, laptops); TX completion interrupts from that traffic reach ath_tx_edma_tasklet() via ath_isr/ath9k_interrupt.\nAC:L - An adjacent attacker can repeatedly induce TX completions and error/status conditions with crafted or high-volume 802.11 traffic; they control timing and load on both sides of the race, making invalid firmware qid values (10-15) reachable without conditions outside attacker influence.\nPR:N - No local account or kernel privileges are required; unauthenticated adjacent WiFi frames (probes, data, deauth/flood) cause the victim radio to transmit and process firmware TX status reports on the interrupt path.\nUI:N - No victim interaction is needed beyond the device having WiFi active, which is the normal operating state for routers, phones, and IoT APs using ath9k hardware.\nS:U - Impact is confined to kernel memory corruption and privilege escalation or denial of service on the affected host; it does not cross VM, container, or IOMMU security boundaries.\nC:H - Out-of-bounds indexing of sc-\u003etx.txq[ts.qid] reads adjacent ath_softc/ath_tx fields as struct ath_txq (spinlocks, list heads, DMA metadata), constituting an unbounded OOB kernel memory read exploitable for information disclosure.\nI:H - The OOB txq pointer is dereferenced for spin_lock_bh, list_head manipulation, and ath_tx_process_buffer(), writing through misaligned kernel structures and enabling heap corruption and potential arbitrary code execution.\nA:H - Locking and list operations on memory interpreted as the wrong ath_txq can cause kernel oops, panic, or hang, and repeated adjacent triggering can sustain denial of service on the wireless host."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-17T05:46:51.612Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54"
            },
            {
              "url": "https://git.kernel.org/stable/c/734db72d55ca578a344dfa33e30145032c074b25"
            },
            {
              "url": "https://git.kernel.org/stable/c/f5931d06b45ed402572bfe5832fff15864ef5481"
            },
            {
              "url": "https://git.kernel.org/stable/c/46ca1451f61b598f45cb5259e066d305444d95fc"
            },
            {
              "url": "https://git.kernel.org/stable/c/a9e055ac62cb3fcea262d4b687ec73eed82b3379"
            },
            {
              "url": "https://git.kernel.org/stable/c/5435fd3edcb11c7cc4002847c83e9a50b49284dc"
            },
            {
              "url": "https://git.kernel.org/stable/c/336d4c8cd9b1646060ee690c881d465dfc09c6c0"
            },
            {
              "url": "https://git.kernel.org/stable/c/7ce2f118a2389e8f0a64068c6fe7cc7d40639be0"
            }
          ],
          "title": "wifi: ath9k: fix OOB access from firmware tx status queue ID",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2026-74408",
        "datePublished": "2026-08-15T05:59:16.701Z",
        "dateReserved": "2026-08-15T05:44:03.892Z",
        "dateUpdated": "2026-10-16T19:05:43.633Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.