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CVE-2025-21973 (GCVE-0-2025-21973)

Vulnerability from cvelistv5 – Published: 2025-04-01 15:47 – Updated: 2026-05-11 21:10
VLAI
Title
eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}
Summary
In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx} When qstats-get operation is executed, callbacks of netdev_stats_ops are called. The bnxt_get_queue_stats{rx | tx} collect per-queue stats from sw_stats in the rings. But {rx | tx | cp}_ring are allocated when the interface is up. So, these rings are not allocated when the interface is down. The qstats-get is allowed even if the interface is down. However, the bnxt_get_queue_stats{rx | tx}() accesses cp_ring and tx_ring without null check. So, it needs to avoid accessing rings if the interface is down. Reproducer: ip link set $interface down ./cli.py --spec netdev.yaml --dump qstats-get OR ip link set $interface down python ./stats.py Splat looks like: BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 1680fa067 P4D 1680fa067 PUD 16be3b067 PMD 0 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 0 UID: 0 PID: 1495 Comm: python3 Not tainted 6.14.0-rc4+ #32 5cd0f999d5a15c574ac72b3e4b907341 Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021 RIP: 0010:bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en] Code: c6 87 b5 18 00 00 02 eb a2 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 01 RSP: 0018:ffffabef43cdb7e0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffffffffc04c8710 RCX: 0000000000000000 RDX: ffffabef43cdb858 RSI: 0000000000000000 RDI: ffff8d504e850000 RBP: ffff8d506c9f9c00 R08: 0000000000000004 R09: ffff8d506bcd901c R10: 0000000000000015 R11: ffff8d506bcd9000 R12: 0000000000000000 R13: ffffabef43cdb8c0 R14: ffff8d504e850000 R15: 0000000000000000 FS: 00007f2c5462b080(0000) GS:ffff8d575f600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000167fd0000 CR4: 00000000007506f0 PKRU: 55555554 Call Trace: <TASK> ? __die+0x20/0x70 ? page_fault_oops+0x15a/0x460 ? sched_balance_find_src_group+0x58d/0xd10 ? exc_page_fault+0x6e/0x180 ? asm_exc_page_fault+0x22/0x30 ? bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en cdd546fd48563c280cfd30e9647efa420db07bf1] netdev_nl_stats_by_netdev+0x2b1/0x4e0 ? xas_load+0x9/0xb0 ? xas_find+0x183/0x1d0 ? xa_find+0x8b/0xe0 netdev_nl_qstats_get_dumpit+0xbf/0x1e0 genl_dumpit+0x31/0x90 netlink_dump+0x1a8/0x360
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: af7b3b4adda592cb49e202f3617454d5dda4c5b5 , < f059a0fd733078c3832fd0f3a3037aa5975d3d36 (git)
Affected: af7b3b4adda592cb49e202f3617454d5dda4c5b5 , < adb830085f0fc3a09a0fc8b64fed2e7c8d244665 (git)
Affected: af7b3b4adda592cb49e202f3617454d5dda4c5b5 , < f09af5fdfbd9b0fcee73aab1116904c53b199e97 (git)
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Linux Linux Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 6.12.20 , ≤ 6.12.* (semver)
Unaffected: 6.13.8 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
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          "programFiles": [
            "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
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          "vendor": "Linux",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}\n\nWhen qstats-get operation is executed, callbacks of netdev_stats_ops\nare called. The bnxt_get_queue_stats{rx | tx} collect per-queue stats\nfrom sw_stats in the rings.\nBut {rx | tx | cp}_ring are allocated when the interface is up.\nSo, these rings are not allocated when the interface is down.\n\nThe qstats-get is allowed even if the interface is down. However,\nthe bnxt_get_queue_stats{rx | tx}() accesses cp_ring and tx_ring\nwithout null check.\nSo, it needs to avoid accessing rings if the interface is down.\n\nReproducer:\n ip link set $interface down\n ./cli.py --spec netdev.yaml --dump qstats-get\nOR\n ip link set $interface down\n python ./stats.py\n\nSplat looks like:\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 1680fa067 P4D 1680fa067 PUD 16be3b067 PMD 0\n Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 0 UID: 0 PID: 1495 Comm: python3 Not tainted 6.14.0-rc4+ #32 5cd0f999d5a15c574ac72b3e4b907341\n Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\n RIP: 0010:bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en]\n Code: c6 87 b5 18 00 00 02 eb a2 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 01\n RSP: 0018:ffffabef43cdb7e0 EFLAGS: 00010282\n RAX: 0000000000000000 RBX: ffffffffc04c8710 RCX: 0000000000000000\n RDX: ffffabef43cdb858 RSI: 0000000000000000 RDI: ffff8d504e850000\n RBP: ffff8d506c9f9c00 R08: 0000000000000004 R09: ffff8d506bcd901c\n R10: 0000000000000015 R11: ffff8d506bcd9000 R12: 0000000000000000\n R13: ffffabef43cdb8c0 R14: ffff8d504e850000 R15: 0000000000000000\n FS:  00007f2c5462b080(0000) GS:ffff8d575f600000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000000 CR3: 0000000167fd0000 CR4: 00000000007506f0\n PKRU: 55555554\n Call Trace:\n  \u003cTASK\u003e\n  ? __die+0x20/0x70\n  ? page_fault_oops+0x15a/0x460\n  ? sched_balance_find_src_group+0x58d/0xd10\n  ? exc_page_fault+0x6e/0x180\n  ? asm_exc_page_fault+0x22/0x30\n  ? bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en cdd546fd48563c280cfd30e9647efa420db07bf1]\n  netdev_nl_stats_by_netdev+0x2b1/0x4e0\n  ? xas_load+0x9/0xb0\n  ? xas_find+0x183/0x1d0\n  ? xa_find+0x8b/0xe0\n  netdev_nl_qstats_get_dumpit+0xbf/0x1e0\n  genl_dumpit+0x31/0x90\n  netlink_dump+0x1a8/0x360"
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:10:10.543Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f059a0fd733078c3832fd0f3a3037aa5975d3d36"
        },
        {
          "url": "https://git.kernel.org/stable/c/adb830085f0fc3a09a0fc8b64fed2e7c8d244665"
        },
        {
          "url": "https://git.kernel.org/stable/c/f09af5fdfbd9b0fcee73aab1116904c53b199e97"
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      ],
      "title": "eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21973",
    "datePublished": "2025-04-01T15:47:05.506Z",
    "dateReserved": "2024-12-29T08:45:45.797Z",
    "dateUpdated": "2026-05-11T21:10:10.543Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-21973",
      "date": "2026-09-16",
      "epss": "0.0019",
      "percentile": "0.08931"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21973\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-01T16:15:28.637\",\"lastModified\":\"2026-06-17T08:44:44.880\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\neth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}\\n\\nWhen qstats-get operation is executed, callbacks of netdev_stats_ops\\nare called. The bnxt_get_queue_stats{rx | tx} collect per-queue stats\\nfrom sw_stats in the rings.\\nBut {rx | tx | cp}_ring are allocated when the interface is up.\\nSo, these rings are not allocated when the interface is down.\\n\\nThe qstats-get is allowed even if the interface is down. However,\\nthe bnxt_get_queue_stats{rx | tx}() accesses cp_ring and tx_ring\\nwithout null check.\\nSo, it needs to avoid accessing rings if the interface is down.\\n\\nReproducer:\\n ip link set $interface down\\n ./cli.py --spec netdev.yaml --dump qstats-get\\nOR\\n ip link set $interface down\\n python ./stats.py\\n\\nSplat looks like:\\n BUG: kernel NULL pointer dereference, address: 0000000000000000\\n #PF: supervisor read access in kernel mode\\n #PF: error_code(0x0000) - not-present page\\n PGD 1680fa067 P4D 1680fa067 PUD 16be3b067 PMD 0\\n Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\\n CPU: 0 UID: 0 PID: 1495 Comm: python3 Not tainted 6.14.0-rc4+ #32 5cd0f999d5a15c574ac72b3e4b907341\\n Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\\n RIP: 0010:bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en]\\n Code: c6 87 b5 18 00 00 02 eb a2 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 01\\n RSP: 0018:ffffabef43cdb7e0 EFLAGS: 00010282\\n RAX: 0000000000000000 RBX: ffffffffc04c8710 RCX: 0000000000000000\\n RDX: ffffabef43cdb858 RSI: 0000000000000000 RDI: ffff8d504e850000\\n RBP: ffff8d506c9f9c00 R08: 0000000000000004 R09: ffff8d506bcd901c\\n R10: 0000000000000015 R11: ffff8d506bcd9000 R12: 0000000000000000\\n R13: ffffabef43cdb8c0 R14: ffff8d504e850000 R15: 0000000000000000\\n FS:  00007f2c5462b080(0000) GS:ffff8d575f600000(0000) knlGS:0000000000000000\\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: 0000000000000000 CR3: 0000000167fd0000 CR4: 00000000007506f0\\n PKRU: 55555554\\n Call Trace:\\n  \u003cTASK\u003e\\n  ? __die+0x20/0x70\\n  ? page_fault_oops+0x15a/0x460\\n  ? sched_balance_find_src_group+0x58d/0xd10\\n  ? exc_page_fault+0x6e/0x180\\n  ? asm_exc_page_fault+0x22/0x30\\n  ? bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en cdd546fd48563c280cfd30e9647efa420db07bf1]\\n  netdev_nl_stats_by_netdev+0x2b1/0x4e0\\n  ? xas_load+0x9/0xb0\\n  ? xas_find+0x183/0x1d0\\n  ? xa_find+0x8b/0xe0\\n  netdev_nl_qstats_get_dumpit+0xbf/0x1e0\\n  genl_dumpit+0x31/0x90\\n  netlink_dump+0x1a8/0x360\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: eth: bnxt: corrige el p\u00e1nico del kernel en bnxt_get_queue_stats{rx | tx} Cuando se ejecuta la operaci\u00f3n qstats-get, se llaman las devoluciones de llamada de netdev_stats_ops. bnxt_get_queue_stats{rx | tx} recopila estad\u00edsticas por cola de sw_stats en los anillos. Pero {rx | tx | cp}_ring se asignan cuando la interfaz est\u00e1 activa. Por lo tanto, estos anillos no se asignan cuando la interfaz est\u00e1 inactiva. qstats-get est\u00e1 permitido incluso si la interfaz est\u00e1 inactiva. Sin embargo, bnxt_get_queue_stats{rx | tx}() accede a cp_ring y tx_ring sin comprobaci\u00f3n de valores nulos. Por lo tanto, debe evitar acceder a los anillos si la interfaz est\u00e1 inactiva. Reproductor: ip link set $interface down ./cli.py --spec netdev.yaml --dump qstats-get O ip link set $interface down python ./stats.py El problema se parece a esto: ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000000 #PF: acceso de lectura del supervisor en modo kernel #PF: error_code(0x0000) - p\u00e1gina no presente PGD 1680fa067 P4D 1680fa067 PUD 16be3b067 PMD 0 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 0 UID: 0 PID: 1495 Comm: python3 No contaminado 6.14.0-rc4+ #32 5cd0f999d5a15c574ac72b3e4b907341 Nombre del hardware: Nombre del producto del sistema ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021 RIP: 0010:bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en] Code: c6 87 b5 18 00 00 02 eb a2 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 01 RSP: 0018:ffffabef43cdb7e0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffffffffc04c8710 RCX: 0000000000000000 RDX: ffffabef43cdb858 RSI: 0000000000000000 RDI: ffff8d504e850000 RBP: ffff8d506c9f9c00 R08: 0000000000000004 R09: ffff8d506bcd901c R10: 0000000000000015 R11: ffff8d506bcd9000 R12: 0000000000000000 R13: ffffabef43cdb8c0 R14: ffff8d504e850000 R15: 0000000000000000 FS: 00007f2c5462b080(0000) GS:ffff8d575f600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000167fd0000 CR4: 00000000007506f0 PKRU: 55555554 Call Trace:  ? __die+0x20/0x70 ? page_fault_oops+0x15a/0x460 ? sched_balance_find_src_group+0x58d/0xd10 ? exc_page_fault+0x6e/0x180 ? asm_exc_page_fault+0x22/0x30 ? bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en cdd546fd48563c280cfd30e9647efa420db07bf1] netdev_nl_stats_by_netdev+0x2b1/0x4e0 ? xas_load+0x9/0xb0 ? xas_find+0x183/0x1d0 ? xa_find+0x8b/0xe0 netdev_nl_qstats_get_dumpit+0xbf/0x1e0 genl_dumpit+0x31/0x90 netlink_dump+0x1a8/0x360 \"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ethernet/broadcom/bnxt/bnxt.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"af7b3b4adda592cb49e202f3617454d5dda4c5b5\",\"lessThan\":\"f059a0fd733078c3832fd0f3a3037aa5975d3d36\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"af7b3b4adda592cb49e202f3617454d5dda4c5b5\",\"lessThan\":\"adb830085f0fc3a09a0fc8b64fed2e7c8d244665\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"af7b3b4adda592cb49e202f3617454d5dda4c5b5\",\"lessThan\":\"f09af5fdfbd9b0fcee73aab1116904c53b199e97\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ethernet/broadcom/bnxt/bnxt.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.9\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.9\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.20\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.13.8\",\"lessThanOrEqual\":\"6.13.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.14\",\"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:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}]},\"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\":\"6.9\",\"versionEndExcluding\":\"6.12.20\",\"matchCriteriaId\":\"513AF679-3B07-4CEA-9304-17045CBED7F0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.13.8\",\"matchCriteriaId\":\"0A20D4D7-B329-4C68-B662-76062EA7DCF0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"186716B6-2B66-4BD0-852E-D48E71C0C85F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"0D3E781C-403A-498F-9DA9-ECEE50F41E75\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"66619FB8-0AAF-4166-B2CF-67B24143261D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"D3D6550E-6679-4560-902D-AF52DCFE905B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"45B90F6B-BEC7-4D4E-883A-9DBADE021750\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"1759FFB7-531C-41B1-9AE1-FD3D80E0D920\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/adb830085f0fc3a09a0fc8b64fed2e7c8d244665\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f059a0fd733078c3832fd0f3a3037aa5975d3d36\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f09af5fdfbd9b0fcee73aab1116904c53b199e97\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T00:40:34+00:00",
      "cve": "CVE-2025-21973",
      "id": "CVE-2025-21973",
      "initial_release_date": "2025-04-01T00:00:00+00:00",
      "product_status:known_affected": "212",
      "product_status:known_not_affected": "62",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21973.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T01:25:59Z",
      "cve": "CVE-2025-21973",
      "id": "CVE-2025-21973",
      "initial_release_date": "2025-04-05T02:25:12Z",
      "product_status:known_not_affected": "459",
      "product_status:recommended": "152",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-21973",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-21973.json",
      "version": "19"
    }
  }
}



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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.

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