CVE-2024-56609 (GCVE-0-2024-56609)

Vulnerability from cvelistv5 – Published: 2024-12-27 14:51 – Updated: 2026-05-11 20:55
VLAI
Title
wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb When removing kernel modules by: rmmod rtw88_8723cs rtw88_8703b rtw88_8723x rtw88_sdio rtw88_core Driver uses skb_queue_purge() to purge TX skb, but not report tx status causing "Have pending ack frames!" warning. Use ieee80211_purge_tx_queue() to correct this. Since ieee80211_purge_tx_queue() doesn't take locks, to prevent racing between TX work and purge TX queue, flush and destroy TX work in advance. wlan0: deauthenticating from aa:f5:fd:60:4c:a8 by local choice (Reason: 3=DEAUTH_LEAVING) ------------[ cut here ]------------ Have pending ack frames! WARNING: CPU: 3 PID: 9232 at net/mac80211/main.c:1691 ieee80211_free_ack_frame+0x5c/0x90 [mac80211] CPU: 3 PID: 9232 Comm: rmmod Tainted: G C 6.10.1-200.fc40.aarch64 #1 Hardware name: pine64 Pine64 PinePhone Braveheart (1.1)/Pine64 PinePhone Braveheart (1.1), BIOS 2024.01 01/01/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ieee80211_free_ack_frame+0x5c/0x90 [mac80211] lr : ieee80211_free_ack_frame+0x5c/0x90 [mac80211] sp : ffff80008c1b37b0 x29: ffff80008c1b37b0 x28: ffff000003be8000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff000003dc14b8 x24: ffff80008c1b37d0 x23: ffff000000ff9f80 x22: 0000000000000000 x21: 000000007fffffff x20: ffff80007c7e93d8 x19: ffff00006e66f400 x18: 0000000000000000 x17: ffff7ffffd2b3000 x16: ffff800083fc0000 x15: 0000000000000000 x14: 0000000000000000 x13: 2173656d61726620 x12: 6b636120676e6964 x11: 0000000000000000 x10: 000000000000005d x9 : ffff8000802af2b0 x8 : ffff80008c1b3430 x7 : 0000000000000001 x6 : 0000000000000001 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000003be8000 Call trace: ieee80211_free_ack_frame+0x5c/0x90 [mac80211] idr_for_each+0x74/0x110 ieee80211_free_hw+0x44/0xe8 [mac80211] rtw_sdio_remove+0x9c/0xc0 [rtw88_sdio] sdio_bus_remove+0x44/0x180 device_remove+0x54/0x90 device_release_driver_internal+0x1d4/0x238 driver_detach+0x54/0xc0 bus_remove_driver+0x78/0x108 driver_unregister+0x38/0x78 sdio_unregister_driver+0x2c/0x40 rtw_8723cs_driver_exit+0x18/0x1000 [rtw88_8723cs] __do_sys_delete_module.isra.0+0x190/0x338 __arm64_sys_delete_module+0x1c/0x30 invoke_syscall+0x74/0x100 el0_svc_common.constprop.0+0x48/0xf0 do_el0_svc+0x24/0x38 el0_svc+0x3c/0x158 el0t_64_sync_handler+0x120/0x138 el0t_64_sync+0x194/0x198 ---[ end trace 0000000000000000 ]---
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e3037485c68ec1a299ff41160d8fedbd4abc29b9 , < 4e8ce3978d704cb28678355d294e10a008b6230a (git)
Affected: e3037485c68ec1a299ff41160d8fedbd4abc29b9 , < 3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68 (git)
Affected: e3037485c68ec1a299ff41160d8fedbd4abc29b9 , < 9bca6528f20325d30c22236b23116f161d418f6d (git)
Affected: e3037485c68ec1a299ff41160d8fedbd4abc29b9 , < 3e5e4a801aaf4283390cc34959c6c48f910ca5ea (git)
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Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 6.1.136 , ≤ 6.1.* (semver)
Unaffected: 6.6.70 , ≤ 6.6.* (semver)
Unaffected: 6.12.5 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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{
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          "dateUpdated": "2025-11-03T19:32:28.553Z",
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            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
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        "title": "CVE Program Container"
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    "cna": {
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          "programFiles": [
            "drivers/net/wireless/realtek/rtw88/sdio.c",
            "drivers/net/wireless/realtek/rtw88/usb.c"
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            "drivers/net/wireless/realtek/rtw88/usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "version": "0",
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              "version": "6.1.136",
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              "version": "6.6.70",
              "versionType": "semver"
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      "cpeApplicability": [
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                {
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                  "versionEndExcluding": "6.6.70",
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                {
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb\n\nWhen removing kernel modules by:\n   rmmod rtw88_8723cs rtw88_8703b rtw88_8723x rtw88_sdio rtw88_core\n\nDriver uses skb_queue_purge() to purge TX skb, but not report tx status\ncausing \"Have pending ack frames!\" warning. Use ieee80211_purge_tx_queue()\nto correct this.\n\nSince ieee80211_purge_tx_queue() doesn\u0027t take locks, to prevent racing\nbetween TX work and purge TX queue, flush and destroy TX work in advance.\n\n   wlan0: deauthenticating from aa:f5:fd:60:4c:a8 by local\n     choice (Reason: 3=DEAUTH_LEAVING)\n   ------------[ cut here ]------------\n   Have pending ack frames!\n   WARNING: CPU: 3 PID: 9232 at net/mac80211/main.c:1691\n       ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n   CPU: 3 PID: 9232 Comm: rmmod Tainted: G         C\n       6.10.1-200.fc40.aarch64 #1\n   Hardware name: pine64 Pine64 PinePhone Braveheart\n      (1.1)/Pine64 PinePhone Braveheart (1.1), BIOS 2024.01 01/01/2024\n   pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n   pc : ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n   lr : ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n   sp : ffff80008c1b37b0\n   x29: ffff80008c1b37b0 x28: ffff000003be8000 x27: 0000000000000000\n   x26: 0000000000000000 x25: ffff000003dc14b8 x24: ffff80008c1b37d0\n   x23: ffff000000ff9f80 x22: 0000000000000000 x21: 000000007fffffff\n   x20: ffff80007c7e93d8 x19: ffff00006e66f400 x18: 0000000000000000\n   x17: ffff7ffffd2b3000 x16: ffff800083fc0000 x15: 0000000000000000\n   x14: 0000000000000000 x13: 2173656d61726620 x12: 6b636120676e6964\n   x11: 0000000000000000 x10: 000000000000005d x9 : ffff8000802af2b0\n   x8 : ffff80008c1b3430 x7 : 0000000000000001 x6 : 0000000000000001\n   x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n   x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000003be8000\n   Call trace:\n    ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n    idr_for_each+0x74/0x110\n    ieee80211_free_hw+0x44/0xe8 [mac80211]\n    rtw_sdio_remove+0x9c/0xc0 [rtw88_sdio]\n    sdio_bus_remove+0x44/0x180\n    device_remove+0x54/0x90\n    device_release_driver_internal+0x1d4/0x238\n    driver_detach+0x54/0xc0\n    bus_remove_driver+0x78/0x108\n    driver_unregister+0x38/0x78\n    sdio_unregister_driver+0x2c/0x40\n    rtw_8723cs_driver_exit+0x18/0x1000 [rtw88_8723cs]\n    __do_sys_delete_module.isra.0+0x190/0x338\n    __arm64_sys_delete_module+0x1c/0x30\n    invoke_syscall+0x74/0x100\n    el0_svc_common.constprop.0+0x48/0xf0\n    do_el0_svc+0x24/0x38\n    el0_svc+0x3c/0x158\n    el0t_64_sync_handler+0x120/0x138\n    el0t_64_sync+0x194/0x198\n   ---[ end trace 0000000000000000 ]---"
        }
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        "dateUpdated": "2026-05-11T20:55:46.470Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/4e8ce3978d704cb28678355d294e10a008b6230a"
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        {
          "url": "https://git.kernel.org/stable/c/9bca6528f20325d30c22236b23116f161d418f6d"
        },
        {
          "url": "https://git.kernel.org/stable/c/3e5e4a801aaf4283390cc34959c6c48f910ca5ea"
        }
      ],
      "title": "wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56609",
    "datePublished": "2024-12-27T14:51:14.155Z",
    "dateReserved": "2024-12-27T14:03:06.013Z",
    "dateUpdated": "2026-05-11T20:55:46.470Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-56609",
      "date": "2026-06-07",
      "epss": "0.00013",
      "percentile": "0.02335"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56609\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-27T15:15:20.387\",\"lastModified\":\"2025-11-03T20:16:53.960\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb\\n\\nWhen removing kernel modules by:\\n   rmmod rtw88_8723cs rtw88_8703b rtw88_8723x rtw88_sdio rtw88_core\\n\\nDriver uses skb_queue_purge() to purge TX skb, but not report tx status\\ncausing \\\"Have pending ack frames!\\\" warning. Use ieee80211_purge_tx_queue()\\nto correct this.\\n\\nSince ieee80211_purge_tx_queue() doesn\u0027t take locks, to prevent racing\\nbetween TX work and purge TX queue, flush and destroy TX work in advance.\\n\\n   wlan0: deauthenticating from aa:f5:fd:60:4c:a8 by local\\n     choice (Reason: 3=DEAUTH_LEAVING)\\n   ------------[ cut here ]------------\\n   Have pending ack frames!\\n   WARNING: CPU: 3 PID: 9232 at net/mac80211/main.c:1691\\n       ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\\n   CPU: 3 PID: 9232 Comm: rmmod Tainted: G         C\\n       6.10.1-200.fc40.aarch64 #1\\n   Hardware name: pine64 Pine64 PinePhone Braveheart\\n      (1.1)/Pine64 PinePhone Braveheart (1.1), BIOS 2024.01 01/01/2024\\n   pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n   pc : ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\\n   lr : ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\\n   sp : ffff80008c1b37b0\\n   x29: ffff80008c1b37b0 x28: ffff000003be8000 x27: 0000000000000000\\n   x26: 0000000000000000 x25: ffff000003dc14b8 x24: ffff80008c1b37d0\\n   x23: ffff000000ff9f80 x22: 0000000000000000 x21: 000000007fffffff\\n   x20: ffff80007c7e93d8 x19: ffff00006e66f400 x18: 0000000000000000\\n   x17: ffff7ffffd2b3000 x16: ffff800083fc0000 x15: 0000000000000000\\n   x14: 0000000000000000 x13: 2173656d61726620 x12: 6b636120676e6964\\n   x11: 0000000000000000 x10: 000000000000005d x9 : ffff8000802af2b0\\n   x8 : ffff80008c1b3430 x7 : 0000000000000001 x6 : 0000000000000001\\n   x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\\n   x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000003be8000\\n   Call trace:\\n    ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\\n    idr_for_each+0x74/0x110\\n    ieee80211_free_hw+0x44/0xe8 [mac80211]\\n    rtw_sdio_remove+0x9c/0xc0 [rtw88_sdio]\\n    sdio_bus_remove+0x44/0x180\\n    device_remove+0x54/0x90\\n    device_release_driver_internal+0x1d4/0x238\\n    driver_detach+0x54/0xc0\\n    bus_remove_driver+0x78/0x108\\n    driver_unregister+0x38/0x78\\n    sdio_unregister_driver+0x2c/0x40\\n    rtw_8723cs_driver_exit+0x18/0x1000 [rtw88_8723cs]\\n    __do_sys_delete_module.isra.0+0x190/0x338\\n    __arm64_sys_delete_module+0x1c/0x30\\n    invoke_syscall+0x74/0x100\\n    el0_svc_common.constprop.0+0x48/0xf0\\n    do_el0_svc+0x24/0x38\\n    el0_svc+0x3c/0x158\\n    el0t_64_sync_handler+0x120/0x138\\n    el0t_64_sync+0x194/0x198\\n   ---[ end trace 0000000000000000 ]---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: rtw88: use ieee80211_purge_tx_queue() para purgar TX skb Al eliminar m\u00f3dulos del kernel mediante: rmmod rtw88_8723cs rtw88_8703b rtw88_8723x rtw88_sdio rtw88_core El controlador usa skb_queue_purge() para purgar TX skb, pero no informa el estado de la tx, lo que provoca la advertencia \\\"\u00a1Tiene marcos de reconocimiento pendientes!\\\". Use ieee80211_purge_tx_queue() para corregir esto. Dado que ieee80211_purge_tx_queue() no toma bloqueos, para evitar ejecuci\u00f3ns entre el trabajo de TX y la cola de purga de TX, vac\u00ede y destruya el trabajo de TX con anticipaci\u00f3n. wlan0: desautenticando desde aa:f5:fd:60:4c:a8 por elecci\u00f3n local (Raz\u00f3n: 3=DEAUTH_LEAVING) ------------[ cortar aqu\u00ed ]------------ \u00a1Hay marcos de reconocimiento pendientes! ADVERTENCIA: CPU: 3 PID: 9232 en net/mac80211/main.c:1691 ieee80211_free_ack_frame+0x5c/0x90 [mac80211] CPU: 3 PID: 9232 Comm: rmmod Contaminado: GC 6.10.1-200.fc40.aarch64 #1 Nombre del hardware: pine64 Pine64 PinePhone Braveheart (1.1)/Pine64 PinePhone Braveheart (1.1), BIOS 2024.01 01/01/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ieee80211_free_ack_frame+0x5c/0x90 [mac80211] lr : ieee80211_free_ack_frame+0x5c/0x90 [mac80211] sp : ffff80008c1b37b0 x29: ffff80008c1b37b0 x28: ffff000003be8000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff000003dc14b8 x24: ffff80008c1b37d0 x23: ffff000000ff9f80 x22: 0000000000000000 x21: 000000007fffffff x20: ffff80007c7e93d8 x19: ffff00006e66f400 x18: 0000000000000000 x17: ffff7ffffd2b3000 x16: ffff800083fc0000 x15: 0000000000000000 x14: 0000000000000000 x13: 2173656d61726620 x12: 6b636120676e6964 x11: 000000000000000 x10: 000000000000005d x9: ffff8000802af2b0 x8: ffff80008c1b3430 x7: 00000000000000001 x6 : 0000000000000001 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000003be8000 Rastreo de llamadas: ieee80211_free_ack_frame+0x5c/0x90 [mac80211] idr_for_each+0x74/0x110 ieee80211_free_hw+0x44/0xe8 [mac80211] rtw_sdio_remove+0x9c/0xc0 [rtw88_sdio] sdio_bus_remove+0x44/0x180 device_remove+0x54/0x90 device_release_driver_internal+0x1d4/0x238 driver_detach+0x54/0xc0 bus_remove_driver+0x78/0x108 driver_unregister+0x38/0x78 sdio_unregister_driver+0x2c/0x40 rtw_8723cs_driver_exit+0x18/0x1000 [rtw88_8723cs] __do_sys_delete_module.isra.0+0x190/0x338 __arm64_sys_delete_module+0x1c/0x30 invocar_llamada_al_sistema+0x74/0x100 el0_svc_common.constprop.0+0x48/0xf0 do_el0_svc+0x24/0x38 el0_svc+0x3c/0x158 el0t_64_sync_handler+0x120/0x138 el0t_64_sync+0x194/0x198 ---[ fin de seguimiento 0000000000000000 ]---\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.2\",\"versionEndExcluding\":\"6.1.136\",\"matchCriteriaId\":\"863DB97A-FEBB-437F-B15E-8D41C1CCDE93\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.70\",\"matchCriteriaId\":\"51E6CFF2-92AA-4936-95AB-2D068168A696\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.5\",\"matchCriteriaId\":\"9501D045-7A94-42CA-8B03-821BE94A65B7\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3e5e4a801aaf4283390cc34959c6c48f910ca5ea\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4e8ce3978d704cb28678355d294e10a008b6230a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9bca6528f20325d30c22236b23116f161d418f6d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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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.


Detection rules are retrieved from Rulezet.