CVE-2022-50388 (GCVE-0-2022-50388)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-01-14 18:53
VLAI?
Title
nvme: fix multipath crash caused by flush request when blktrace is enabled
Summary
In the Linux kernel, the following vulnerability has been resolved: nvme: fix multipath crash caused by flush request when blktrace is enabled The flush request initialized by blk_kick_flush has NULL bio, and it may be dealt with nvme_end_req during io completion. When blktrace is enabled, nvme_trace_bio_complete with multipath activated trying to access NULL pointer bio from flush request results in the following crash: [ 2517.831677] BUG: kernel NULL pointer dereference, address: 000000000000001a [ 2517.835213] #PF: supervisor read access in kernel mode [ 2517.838724] #PF: error_code(0x0000) - not-present page [ 2517.842222] PGD 7b2d51067 P4D 0 [ 2517.845684] Oops: 0000 [#1] SMP NOPTI [ 2517.849125] CPU: 2 PID: 732 Comm: kworker/2:1H Kdump: loaded Tainted: G S 5.15.67-0.cl9.x86_64 #1 [ 2517.852723] Hardware name: XFUSION 2288H V6/BC13MBSBC, BIOS 1.13 07/27/2022 [ 2517.856358] Workqueue: nvme_tcp_wq nvme_tcp_io_work [nvme_tcp] [ 2517.859993] RIP: 0010:blk_add_trace_bio_complete+0x6/0x30 [ 2517.863628] Code: 1f 44 00 00 48 8b 46 08 31 c9 ba 04 00 10 00 48 8b 80 50 03 00 00 48 8b 78 50 e9 e5 fe ff ff 0f 1f 44 00 00 41 54 49 89 f4 55 <0f> b6 7a 1a 48 89 d5 e8 3e 1c 2b 00 48 89 ee 4c 89 e7 5d 89 c1 ba [ 2517.871269] RSP: 0018:ff7f6a008d9dbcd0 EFLAGS: 00010286 [ 2517.875081] RAX: ff3d5b4be00b1d50 RBX: 0000000002040002 RCX: ff3d5b0a270f2000 [ 2517.878966] RDX: 0000000000000000 RSI: ff3d5b0b021fb9f8 RDI: 0000000000000000 [ 2517.882849] RBP: ff3d5b0b96a6fa00 R08: 0000000000000001 R09: 0000000000000000 [ 2517.886718] R10: 000000000000000c R11: 000000000000000c R12: ff3d5b0b021fb9f8 [ 2517.890575] R13: 0000000002000000 R14: ff3d5b0b021fb1b0 R15: 0000000000000018 [ 2517.894434] FS: 0000000000000000(0000) GS:ff3d5b42bfc80000(0000) knlGS:0000000000000000 [ 2517.898299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2517.902157] CR2: 000000000000001a CR3: 00000004f023e005 CR4: 0000000000771ee0 [ 2517.906053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2517.909930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2517.913761] PKRU: 55555554 [ 2517.917558] Call Trace: [ 2517.921294] <TASK> [ 2517.924982] nvme_complete_rq+0x1c3/0x1e0 [nvme_core] [ 2517.928715] nvme_tcp_recv_pdu+0x4d7/0x540 [nvme_tcp] [ 2517.932442] nvme_tcp_recv_skb+0x4f/0x240 [nvme_tcp] [ 2517.936137] ? nvme_tcp_recv_pdu+0x540/0x540 [nvme_tcp] [ 2517.939830] tcp_read_sock+0x9c/0x260 [ 2517.943486] nvme_tcp_try_recv+0x65/0xa0 [nvme_tcp] [ 2517.947173] nvme_tcp_io_work+0x64/0x90 [nvme_tcp] [ 2517.950834] process_one_work+0x1e8/0x390 [ 2517.954473] worker_thread+0x53/0x3c0 [ 2517.958069] ? process_one_work+0x390/0x390 [ 2517.961655] kthread+0x10c/0x130 [ 2517.965211] ? set_kthread_struct+0x40/0x40 [ 2517.968760] ret_from_fork+0x1f/0x30 [ 2517.972285] </TASK> To avoid this situation, add a NULL check for req->bio before calling trace_block_bio_complete.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd , < f13301a69ababa6c2236fb4f0393b7e914e7e1e0 (git)
Affected: 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd , < 4df413d46960f11c8c105238cfc3f5ff4c95c003 (git)
Affected: 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd , < fcd2d199486033223e9b2a6a7f9a01dd0327eac3 (git)
Affected: 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd , < 183c2aaef40a91acbaae45c3824d6cde7bb62b10 (git)
Affected: 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd , < 3659fb5ac29a5e6102bebe494ac789fd47fb78f4 (git)
Create a notification for this product.
    Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.87 , ≤ 5.15.* (semver)
Unaffected: 6.0.19 , ≤ 6.0.* (semver)
Unaffected: 6.1.5 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: fix multipath crash caused by flush request when blktrace is enabled\n\nThe flush request initialized by blk_kick_flush has NULL bio,\nand it may be dealt with nvme_end_req during io completion.\nWhen blktrace is enabled, nvme_trace_bio_complete with multipath\nactivated trying to access NULL pointer bio from flush request\nresults in the following crash:\n\n[ 2517.831677] BUG: kernel NULL pointer dereference, address: 000000000000001a\n[ 2517.835213] #PF: supervisor read access in kernel mode\n[ 2517.838724] #PF: error_code(0x0000) - not-present page\n[ 2517.842222] PGD 7b2d51067 P4D 0\n[ 2517.845684] Oops: 0000 [#1] SMP NOPTI\n[ 2517.849125] CPU: 2 PID: 732 Comm: kworker/2:1H Kdump: loaded Tainted: G S                5.15.67-0.cl9.x86_64 #1\n[ 2517.852723] Hardware name: XFUSION 2288H V6/BC13MBSBC, BIOS 1.13 07/27/2022\n[ 2517.856358] Workqueue: nvme_tcp_wq nvme_tcp_io_work [nvme_tcp]\n[ 2517.859993] RIP: 0010:blk_add_trace_bio_complete+0x6/0x30\n[ 2517.863628] Code: 1f 44 00 00 48 8b 46 08 31 c9 ba 04 00 10 00 48 8b 80 50 03 00 00 48 8b 78 50 e9 e5 fe ff ff 0f 1f 44 00 00 41 54 49 89 f4 55 \u003c0f\u003e b6 7a 1a 48 89 d5 e8 3e 1c 2b 00 48 89 ee 4c 89 e7 5d 89 c1 ba\n[ 2517.871269] RSP: 0018:ff7f6a008d9dbcd0 EFLAGS: 00010286\n[ 2517.875081] RAX: ff3d5b4be00b1d50 RBX: 0000000002040002 RCX: ff3d5b0a270f2000\n[ 2517.878966] RDX: 0000000000000000 RSI: ff3d5b0b021fb9f8 RDI: 0000000000000000\n[ 2517.882849] RBP: ff3d5b0b96a6fa00 R08: 0000000000000001 R09: 0000000000000000\n[ 2517.886718] R10: 000000000000000c R11: 000000000000000c R12: ff3d5b0b021fb9f8\n[ 2517.890575] R13: 0000000002000000 R14: ff3d5b0b021fb1b0 R15: 0000000000000018\n[ 2517.894434] FS:  0000000000000000(0000) GS:ff3d5b42bfc80000(0000) knlGS:0000000000000000\n[ 2517.898299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 2517.902157] CR2: 000000000000001a CR3: 00000004f023e005 CR4: 0000000000771ee0\n[ 2517.906053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 2517.909930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 2517.913761] PKRU: 55555554\n[ 2517.917558] Call Trace:\n[ 2517.921294]  \u003cTASK\u003e\n[ 2517.924982]  nvme_complete_rq+0x1c3/0x1e0 [nvme_core]\n[ 2517.928715]  nvme_tcp_recv_pdu+0x4d7/0x540 [nvme_tcp]\n[ 2517.932442]  nvme_tcp_recv_skb+0x4f/0x240 [nvme_tcp]\n[ 2517.936137]  ? nvme_tcp_recv_pdu+0x540/0x540 [nvme_tcp]\n[ 2517.939830]  tcp_read_sock+0x9c/0x260\n[ 2517.943486]  nvme_tcp_try_recv+0x65/0xa0 [nvme_tcp]\n[ 2517.947173]  nvme_tcp_io_work+0x64/0x90 [nvme_tcp]\n[ 2517.950834]  process_one_work+0x1e8/0x390\n[ 2517.954473]  worker_thread+0x53/0x3c0\n[ 2517.958069]  ? process_one_work+0x390/0x390\n[ 2517.961655]  kthread+0x10c/0x130\n[ 2517.965211]  ? set_kthread_struct+0x40/0x40\n[ 2517.968760]  ret_from_fork+0x1f/0x30\n[ 2517.972285]  \u003c/TASK\u003e\n\nTo avoid this situation, add a NULL check for req-\u003ebio before\ncalling trace_block_bio_complete."
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        "dateUpdated": "2025-09-29T10:47:32.224Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/f13301a69ababa6c2236fb4f0393b7e914e7e1e0"
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          "url": "https://git.kernel.org/stable/c/4df413d46960f11c8c105238cfc3f5ff4c95c003"
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        {
          "url": "https://git.kernel.org/stable/c/3659fb5ac29a5e6102bebe494ac789fd47fb78f4"
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      "title": "nvme: fix multipath crash caused by flush request when blktrace is enabled",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50388",
    "datePublished": "2025-09-18T13:33:08.612Z",
    "dateReserved": "2025-09-17T14:53:06.997Z",
    "dateUpdated": "2026-01-14T18:53:04.992Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-50388\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:49:41.132180Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:49:37.080Z\"}}], \"cna\": {\"title\": \"nvme: fix multipath crash caused by flush request when blktrace is enabled\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\", \"lessThan\": \"f13301a69ababa6c2236fb4f0393b7e914e7e1e0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\", \"lessThan\": \"4df413d46960f11c8c105238cfc3f5ff4c95c003\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\", \"lessThan\": \"fcd2d199486033223e9b2a6a7f9a01dd0327eac3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\", \"lessThan\": \"183c2aaef40a91acbaae45c3824d6cde7bb62b10\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\", \"lessThan\": \"3659fb5ac29a5e6102bebe494ac789fd47fb78f4\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/nvme/host/nvme.h\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.4\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.4\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.163\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.87\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.19\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/nvme/host/nvme.h\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/f13301a69ababa6c2236fb4f0393b7e914e7e1e0\"}, {\"url\": \"https://git.kernel.org/stable/c/4df413d46960f11c8c105238cfc3f5ff4c95c003\"}, {\"url\": \"https://git.kernel.org/stable/c/fcd2d199486033223e9b2a6a7f9a01dd0327eac3\"}, {\"url\": \"https://git.kernel.org/stable/c/183c2aaef40a91acbaae45c3824d6cde7bb62b10\"}, {\"url\": \"https://git.kernel.org/stable/c/3659fb5ac29a5e6102bebe494ac789fd47fb78f4\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnvme: fix multipath crash caused by flush request when blktrace is enabled\\n\\nThe flush request initialized by blk_kick_flush has NULL bio,\\nand it may be dealt with nvme_end_req during io completion.\\nWhen blktrace is enabled, nvme_trace_bio_complete with multipath\\nactivated trying to access NULL pointer bio from flush request\\nresults in the following crash:\\n\\n[ 2517.831677] BUG: kernel NULL pointer dereference, address: 000000000000001a\\n[ 2517.835213] #PF: supervisor read access in kernel mode\\n[ 2517.838724] #PF: error_code(0x0000) - not-present page\\n[ 2517.842222] PGD 7b2d51067 P4D 0\\n[ 2517.845684] Oops: 0000 [#1] SMP NOPTI\\n[ 2517.849125] CPU: 2 PID: 732 Comm: kworker/2:1H Kdump: loaded Tainted: G S                5.15.67-0.cl9.x86_64 #1\\n[ 2517.852723] Hardware name: XFUSION 2288H V6/BC13MBSBC, BIOS 1.13 07/27/2022\\n[ 2517.856358] Workqueue: nvme_tcp_wq nvme_tcp_io_work [nvme_tcp]\\n[ 2517.859993] RIP: 0010:blk_add_trace_bio_complete+0x6/0x30\\n[ 2517.863628] Code: 1f 44 00 00 48 8b 46 08 31 c9 ba 04 00 10 00 48 8b 80 50 03 00 00 48 8b 78 50 e9 e5 fe ff ff 0f 1f 44 00 00 41 54 49 89 f4 55 \u003c0f\u003e b6 7a 1a 48 89 d5 e8 3e 1c 2b 00 48 89 ee 4c 89 e7 5d 89 c1 ba\\n[ 2517.871269] RSP: 0018:ff7f6a008d9dbcd0 EFLAGS: 00010286\\n[ 2517.875081] RAX: ff3d5b4be00b1d50 RBX: 0000000002040002 RCX: ff3d5b0a270f2000\\n[ 2517.878966] RDX: 0000000000000000 RSI: ff3d5b0b021fb9f8 RDI: 0000000000000000\\n[ 2517.882849] RBP: ff3d5b0b96a6fa00 R08: 0000000000000001 R09: 0000000000000000\\n[ 2517.886718] R10: 000000000000000c R11: 000000000000000c R12: ff3d5b0b021fb9f8\\n[ 2517.890575] R13: 0000000002000000 R14: ff3d5b0b021fb1b0 R15: 0000000000000018\\n[ 2517.894434] FS:  0000000000000000(0000) GS:ff3d5b42bfc80000(0000) knlGS:0000000000000000\\n[ 2517.898299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[ 2517.902157] CR2: 000000000000001a CR3: 00000004f023e005 CR4: 0000000000771ee0\\n[ 2517.906053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[ 2517.909930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[ 2517.913761] PKRU: 55555554\\n[ 2517.917558] Call Trace:\\n[ 2517.921294]  \u003cTASK\u003e\\n[ 2517.924982]  nvme_complete_rq+0x1c3/0x1e0 [nvme_core]\\n[ 2517.928715]  nvme_tcp_recv_pdu+0x4d7/0x540 [nvme_tcp]\\n[ 2517.932442]  nvme_tcp_recv_skb+0x4f/0x240 [nvme_tcp]\\n[ 2517.936137]  ? nvme_tcp_recv_pdu+0x540/0x540 [nvme_tcp]\\n[ 2517.939830]  tcp_read_sock+0x9c/0x260\\n[ 2517.943486]  nvme_tcp_try_recv+0x65/0xa0 [nvme_tcp]\\n[ 2517.947173]  nvme_tcp_io_work+0x64/0x90 [nvme_tcp]\\n[ 2517.950834]  process_one_work+0x1e8/0x390\\n[ 2517.954473]  worker_thread+0x53/0x3c0\\n[ 2517.958069]  ? process_one_work+0x390/0x390\\n[ 2517.961655]  kthread+0x10c/0x130\\n[ 2517.965211]  ? set_kthread_struct+0x40/0x40\\n[ 2517.968760]  ret_from_fork+0x1f/0x30\\n[ 2517.972285]  \u003c/TASK\u003e\\n\\nTo avoid this situation, add a NULL check for req-\u003ebio before\\ncalling trace_block_bio_complete.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.163\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.87\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.19\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.5\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"5.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-29T10:47:32.224Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-50388\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-14T18:53:04.992Z\", \"dateReserved\": \"2025-09-17T14:53:06.997Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T13:33:08.612Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

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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.