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CVE-2023-53595 (GCVE-0-2023-53595)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:44 – Updated: 2026-05-11 19:48
VLAI
Title
octeontx2-pf: mcs: Fix NULL pointer dereferences
Summary
In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: mcs: Fix NULL pointer dereferences When system is rebooted after creating macsec interface below NULL pointer dereference crashes occurred. This patch fixes those crashes by using correct order of teardown [ 3324.406942] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 3324.415726] Mem abort info: [ 3324.418510] ESR = 0x96000006 [ 3324.421557] EC = 0x25: DABT (current EL), IL = 32 bits [ 3324.426865] SET = 0, FnV = 0 [ 3324.429913] EA = 0, S1PTW = 0 [ 3324.433047] Data abort info: [ 3324.435921] ISV = 0, ISS = 0x00000006 [ 3324.439748] CM = 0, WnR = 0 .... [ 3324.575915] Call trace: [ 3324.578353] cn10k_mdo_del_secy+0x24/0x180 [ 3324.582440] macsec_common_dellink+0xec/0x120 [ 3324.586788] macsec_notify+0x17c/0x1c0 [ 3324.590529] raw_notifier_call_chain+0x50/0x70 [ 3324.594965] call_netdevice_notifiers_info+0x34/0x7c [ 3324.599921] rollback_registered_many+0x354/0x5bc [ 3324.604616] unregister_netdevice_queue+0x88/0x10c [ 3324.609399] unregister_netdev+0x20/0x30 [ 3324.613313] otx2_remove+0x8c/0x310 [ 3324.616794] pci_device_shutdown+0x30/0x70 [ 3324.620882] device_shutdown+0x11c/0x204 [ 966.664930] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 966.673712] Mem abort info: [ 966.676497] ESR = 0x96000006 [ 966.679543] EC = 0x25: DABT (current EL), IL = 32 bits [ 966.684848] SET = 0, FnV = 0 [ 966.687895] EA = 0, S1PTW = 0 [ 966.691028] Data abort info: [ 966.693900] ISV = 0, ISS = 0x00000006 [ 966.697729] CM = 0, WnR = 0 [ 966.833467] Call trace: [ 966.835904] cn10k_mdo_stop+0x20/0xa0 [ 966.839557] macsec_dev_stop+0xe8/0x11c [ 966.843384] __dev_close_many+0xbc/0x140 [ 966.847298] dev_close_many+0x84/0x120 [ 966.851039] rollback_registered_many+0x114/0x5bc [ 966.855735] unregister_netdevice_many.part.0+0x14/0xa0 [ 966.860952] unregister_netdevice_many+0x18/0x24 [ 966.865560] macsec_notify+0x1ac/0x1c0 [ 966.869303] raw_notifier_call_chain+0x50/0x70 [ 966.873738] call_netdevice_notifiers_info+0x34/0x7c [ 966.878694] rollback_registered_many+0x354/0x5bc [ 966.883390] unregister_netdevice_queue+0x88/0x10c [ 966.888173] unregister_netdev+0x20/0x30 [ 966.892090] otx2_remove+0x8c/0x310 [ 966.895571] pci_device_shutdown+0x30/0x70 [ 966.899660] device_shutdown+0x11c/0x204 [ 966.903574] __do_sys_reboot+0x208/0x290 [ 966.907487] __arm64_sys_reboot+0x20/0x30 [ 966.911489] el0_svc_handler+0x80/0x1c0 [ 966.915316] el0_svc+0x8/0x180 [ 966.918362] Code: f9400000 f9400a64 91220014 f94b3403 (f9400060) [ 966.924448] ---[ end trace 341778e799c3d8d7 ]---
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c54ffc73601c0a239e55911923a6e23a2a74f143 , < a3dcc45eca017fca82ac47dbde6f41af960657e5 (git)
Affected: c54ffc73601c0a239e55911923a6e23a2a74f143 , < 1152c0f947b76e7731e039185cbd00fdb4389f00 (git)
Affected: c54ffc73601c0a239e55911923a6e23a2a74f143 , < 13ff119b17e5e2916435ce01a0156c8698ad9e16 (git)
Affected: c54ffc73601c0a239e55911923a6e23a2a74f143 , < 699af748c61574125d269db260dabbe20436d74e (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.29 , ≤ 6.1.* (semver)
Unaffected: 6.2.16 , ≤ 6.2.* (semver)
Unaffected: 6.3.3 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"
          ],
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        {
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.29",
              "versionType": "semver"
            },
            {
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              "version": "6.2.16",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
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            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.29",
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            }
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: mcs: Fix NULL pointer dereferences\n\nWhen system is rebooted after creating macsec interface\nbelow NULL pointer dereference crashes occurred. This\npatch fixes those crashes by using correct order of teardown\n\n[ 3324.406942] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[ 3324.415726] Mem abort info:\n[ 3324.418510]   ESR = 0x96000006\n[ 3324.421557]   EC = 0x25: DABT (current EL), IL = 32 bits\n[ 3324.426865]   SET = 0, FnV = 0\n[ 3324.429913]   EA = 0, S1PTW = 0\n[ 3324.433047] Data abort info:\n[ 3324.435921]   ISV = 0, ISS = 0x00000006\n[ 3324.439748]   CM = 0, WnR = 0\n....\n[ 3324.575915] Call trace:\n[ 3324.578353]  cn10k_mdo_del_secy+0x24/0x180\n[ 3324.582440]  macsec_common_dellink+0xec/0x120\n[ 3324.586788]  macsec_notify+0x17c/0x1c0\n[ 3324.590529]  raw_notifier_call_chain+0x50/0x70\n[ 3324.594965]  call_netdevice_notifiers_info+0x34/0x7c\n[ 3324.599921]  rollback_registered_many+0x354/0x5bc\n[ 3324.604616]  unregister_netdevice_queue+0x88/0x10c\n[ 3324.609399]  unregister_netdev+0x20/0x30\n[ 3324.613313]  otx2_remove+0x8c/0x310\n[ 3324.616794]  pci_device_shutdown+0x30/0x70\n[ 3324.620882]  device_shutdown+0x11c/0x204\n\n[  966.664930] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[  966.673712] Mem abort info:\n[  966.676497]   ESR = 0x96000006\n[  966.679543]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  966.684848]   SET = 0, FnV = 0\n[  966.687895]   EA = 0, S1PTW = 0\n[  966.691028] Data abort info:\n[  966.693900]   ISV = 0, ISS = 0x00000006\n[  966.697729]   CM = 0, WnR = 0\n[  966.833467] Call trace:\n[  966.835904]  cn10k_mdo_stop+0x20/0xa0\n[  966.839557]  macsec_dev_stop+0xe8/0x11c\n[  966.843384]  __dev_close_many+0xbc/0x140\n[  966.847298]  dev_close_many+0x84/0x120\n[  966.851039]  rollback_registered_many+0x114/0x5bc\n[  966.855735]  unregister_netdevice_many.part.0+0x14/0xa0\n[  966.860952]  unregister_netdevice_many+0x18/0x24\n[  966.865560]  macsec_notify+0x1ac/0x1c0\n[  966.869303]  raw_notifier_call_chain+0x50/0x70\n[  966.873738]  call_netdevice_notifiers_info+0x34/0x7c\n[  966.878694]  rollback_registered_many+0x354/0x5bc\n[  966.883390]  unregister_netdevice_queue+0x88/0x10c\n[  966.888173]  unregister_netdev+0x20/0x30\n[  966.892090]  otx2_remove+0x8c/0x310\n[  966.895571]  pci_device_shutdown+0x30/0x70\n[  966.899660]  device_shutdown+0x11c/0x204\n[  966.903574]  __do_sys_reboot+0x208/0x290\n[  966.907487]  __arm64_sys_reboot+0x20/0x30\n[  966.911489]  el0_svc_handler+0x80/0x1c0\n[  966.915316]  el0_svc+0x8/0x180\n[  966.918362] Code: f9400000 f9400a64 91220014 f94b3403 (f9400060)\n[  966.924448] ---[ end trace 341778e799c3d8d7 ]---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:48:11.183Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a3dcc45eca017fca82ac47dbde6f41af960657e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/1152c0f947b76e7731e039185cbd00fdb4389f00"
        },
        {
          "url": "https://git.kernel.org/stable/c/13ff119b17e5e2916435ce01a0156c8698ad9e16"
        },
        {
          "url": "https://git.kernel.org/stable/c/699af748c61574125d269db260dabbe20436d74e"
        }
      ],
      "title": "octeontx2-pf: mcs: Fix NULL pointer dereferences",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53595",
    "datePublished": "2025-10-04T15:44:08.261Z",
    "dateReserved": "2025-10-04T15:40:38.478Z",
    "dateUpdated": "2026-05-11T19:48:11.183Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53595",
      "date": "2026-09-16",
      "epss": "0.00145",
      "percentile": "0.04104"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53595\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-04T16:15:56.030\",\"lastModified\":\"2026-06-17T06:45:40.817\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nocteontx2-pf: mcs: Fix NULL pointer dereferences\\n\\nWhen system is rebooted after creating macsec interface\\nbelow NULL pointer dereference crashes occurred. This\\npatch fixes those crashes by using correct order of teardown\\n\\n[ 3324.406942] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\\n[ 3324.415726] Mem abort info:\\n[ 3324.418510]   ESR = 0x96000006\\n[ 3324.421557]   EC = 0x25: DABT (current EL), IL = 32 bits\\n[ 3324.426865]   SET = 0, FnV = 0\\n[ 3324.429913]   EA = 0, S1PTW = 0\\n[ 3324.433047] Data abort info:\\n[ 3324.435921]   ISV = 0, ISS = 0x00000006\\n[ 3324.439748]   CM = 0, WnR = 0\\n....\\n[ 3324.575915] Call trace:\\n[ 3324.578353]  cn10k_mdo_del_secy+0x24/0x180\\n[ 3324.582440]  macsec_common_dellink+0xec/0x120\\n[ 3324.586788]  macsec_notify+0x17c/0x1c0\\n[ 3324.590529]  raw_notifier_call_chain+0x50/0x70\\n[ 3324.594965]  call_netdevice_notifiers_info+0x34/0x7c\\n[ 3324.599921]  rollback_registered_many+0x354/0x5bc\\n[ 3324.604616]  unregister_netdevice_queue+0x88/0x10c\\n[ 3324.609399]  unregister_netdev+0x20/0x30\\n[ 3324.613313]  otx2_remove+0x8c/0x310\\n[ 3324.616794]  pci_device_shutdown+0x30/0x70\\n[ 3324.620882]  device_shutdown+0x11c/0x204\\n\\n[  966.664930] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\\n[  966.673712] Mem abort info:\\n[  966.676497]   ESR = 0x96000006\\n[  966.679543]   EC = 0x25: DABT (current EL), IL = 32 bits\\n[  966.684848]   SET = 0, FnV = 0\\n[  966.687895]   EA = 0, S1PTW = 0\\n[  966.691028] Data abort info:\\n[  966.693900]   ISV = 0, ISS = 0x00000006\\n[  966.697729]   CM = 0, WnR = 0\\n[  966.833467] Call trace:\\n[  966.835904]  cn10k_mdo_stop+0x20/0xa0\\n[  966.839557]  macsec_dev_stop+0xe8/0x11c\\n[  966.843384]  __dev_close_many+0xbc/0x140\\n[  966.847298]  dev_close_many+0x84/0x120\\n[  966.851039]  rollback_registered_many+0x114/0x5bc\\n[  966.855735]  unregister_netdevice_many.part.0+0x14/0xa0\\n[  966.860952]  unregister_netdevice_many+0x18/0x24\\n[  966.865560]  macsec_notify+0x1ac/0x1c0\\n[  966.869303]  raw_notifier_call_chain+0x50/0x70\\n[  966.873738]  call_netdevice_notifiers_info+0x34/0x7c\\n[  966.878694]  rollback_registered_many+0x354/0x5bc\\n[  966.883390]  unregister_netdevice_queue+0x88/0x10c\\n[  966.888173]  unregister_netdev+0x20/0x30\\n[  966.892090]  otx2_remove+0x8c/0x310\\n[  966.895571]  pci_device_shutdown+0x30/0x70\\n[  966.899660]  device_shutdown+0x11c/0x204\\n[  966.903574]  __do_sys_reboot+0x208/0x290\\n[  966.907487]  __arm64_sys_reboot+0x20/0x30\\n[  966.911489]  el0_svc_handler+0x80/0x1c0\\n[  966.915316]  el0_svc+0x8/0x180\\n[  966.918362] Code: f9400000 f9400a64 91220014 f94b3403 (f9400060)\\n[  966.924448] ---[ end trace 341778e799c3d8d7 ]---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c54ffc73601c0a239e55911923a6e23a2a74f143\",\"lessThan\":\"a3dcc45eca017fca82ac47dbde6f41af960657e5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c54ffc73601c0a239e55911923a6e23a2a74f143\",\"lessThan\":\"1152c0f947b76e7731e039185cbd00fdb4389f00\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c54ffc73601c0a239e55911923a6e23a2a74f143\",\"lessThan\":\"13ff119b17e5e2916435ce01a0156c8698ad9e16\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c54ffc73601c0a239e55911923a6e23a2a74f143\",\"lessThan\":\"699af748c61574125d269db260dabbe20436d74e\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.1\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.1\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.29\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2.16\",\"lessThanOrEqual\":\"6.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.3.3\",\"lessThanOrEqual\":\"6.3.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.4\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1\",\"versionEndExcluding\":\"6.1.29\",\"matchCriteriaId\":\"69A65F0E-38E0-4491-A1A6-176DA6E5B276\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.2.16\",\"matchCriteriaId\":\"F92F7C8E-A977-4255-B1B6-D1908D8B408F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.3\",\"versionEndExcluding\":\"6.3.3\",\"matchCriteriaId\":\"6D96A7FC-D812-4458-AEA8-3FF4023E6B75\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1152c0f947b76e7731e039185cbd00fdb4389f00\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/13ff119b17e5e2916435ce01a0156c8698ad9e16\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/699af748c61574125d269db260dabbe20436d74e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a3dcc45eca017fca82ac47dbde6f41af960657e5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:29:10+00:00",
      "cve": "CVE-2023-53595",
      "id": "CVE-2023-53595",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "305",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "166",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: octeontx2-pf: mcs: Fix NULL pointer dereferences",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53595.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T02:20:06Z",
      "cve": "CVE-2023-53595",
      "id": "CVE-2023-53595",
      "initial_release_date": "2025-10-05T02:55:44Z",
      "product_status:known_not_affected": "523",
      "product_status:recommended": "43",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53595",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53595.json",
      "version": "17"
    }
  }
}



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Taxonomy of the tags.





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.


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.