CVE-2023-53492 (GCVE-0-2023-53492)
Vulnerability from cvelistv5 – Published: 2025-10-01 11:45 – Updated: 2026-08-05 09:14
VLAI
EPSS
VEX
Title
netfilter: nf_tables: do not ignore genmask when looking up chain by id
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: do not ignore genmask when looking up chain by id
When adding a rule to a chain referring to its ID, if that chain had been
deleted on the same batch, the rule might end up referring to a deleted
chain.
This will lead to a WARNING like following:
[ 33.098431] ------------[ cut here ]------------
[ 33.098678] WARNING: CPU: 5 PID: 69 at net/netfilter/nf_tables_api.c:2037 nf_tables_chain_destroy+0x23d/0x260
[ 33.099217] Modules linked in:
[ 33.099388] CPU: 5 PID: 69 Comm: kworker/5:1 Not tainted 6.4.0+ #409
[ 33.099726] Workqueue: events nf_tables_trans_destroy_work
[ 33.100018] RIP: 0010:nf_tables_chain_destroy+0x23d/0x260
[ 33.100306] Code: 8b 7c 24 68 e8 64 9c ed fe 4c 89 e7 e8 5c 9c ed fe 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 89 c6 89 c7 c3 cc cc cc cc <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 89 c6 89 c7
[ 33.101271] RSP: 0018:ffffc900004ffc48 EFLAGS: 00010202
[ 33.101546] RAX: 0000000000000001 RBX: ffff888006fc0a28 RCX: 0000000000000000
[ 33.101920] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 33.102649] RBP: ffffc900004ffc78 R08: 0000000000000000 R09: 0000000000000000
[ 33.103018] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880135ef500
[ 33.103385] R13: 0000000000000000 R14: dead000000000122 R15: ffff888006fc0a10
[ 33.103762] FS: 0000000000000000(0000) GS:ffff888024c80000(0000) knlGS:0000000000000000
[ 33.104184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 33.104493] CR2: 00007fe863b56a50 CR3: 00000000124b0001 CR4: 0000000000770ee0
[ 33.104872] PKRU: 55555554
[ 33.104999] Call Trace:
[ 33.105113] <TASK>
[ 33.105214] ? show_regs+0x72/0x90
[ 33.105371] ? __warn+0xa5/0x210
[ 33.105520] ? nf_tables_chain_destroy+0x23d/0x260
[ 33.105732] ? report_bug+0x1f2/0x200
[ 33.105902] ? handle_bug+0x46/0x90
[ 33.106546] ? exc_invalid_op+0x19/0x50
[ 33.106762] ? asm_exc_invalid_op+0x1b/0x20
[ 33.106995] ? nf_tables_chain_destroy+0x23d/0x260
[ 33.107249] ? nf_tables_chain_destroy+0x30/0x260
[ 33.107506] nf_tables_trans_destroy_work+0x669/0x680
[ 33.107782] ? mark_held_locks+0x28/0xa0
[ 33.107996] ? __pfx_nf_tables_trans_destroy_work+0x10/0x10
[ 33.108294] ? _raw_spin_unlock_irq+0x28/0x70
[ 33.108538] process_one_work+0x68c/0xb70
[ 33.108755] ? lock_acquire+0x17f/0x420
[ 33.108977] ? __pfx_process_one_work+0x10/0x10
[ 33.109218] ? do_raw_spin_lock+0x128/0x1d0
[ 33.109435] ? _raw_spin_lock_irq+0x71/0x80
[ 33.109634] worker_thread+0x2bd/0x700
[ 33.109817] ? __pfx_worker_thread+0x10/0x10
[ 33.110254] kthread+0x18b/0x1d0
[ 33.110410] ? __pfx_kthread+0x10/0x10
[ 33.110581] ret_from_fork+0x29/0x50
[ 33.110757] </TASK>
[ 33.110866] irq event stamp: 1651
[ 33.111017] hardirqs last enabled at (1659): [<ffffffffa206a209>] __up_console_sem+0x79/0xa0
[ 33.111379] hardirqs last disabled at (1666): [<ffffffffa206a1ee>] __up_console_sem+0x5e/0xa0
[ 33.111740] softirqs last enabled at (1616): [<ffffffffa1f5d40e>] __irq_exit_rcu+0x9e/0xe0
[ 33.112094] softirqs last disabled at (1367): [<ffffffffa1f5d40e>] __irq_exit_rcu+0x9e/0xe0
[ 33.112453] ---[ end trace 0000000000000000 ]---
This is due to the nft_chain_lookup_byid ignoring the genmask. After this
change, adding the new rule will fail as it will not find the chain.
Severity
7.8 (High)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
837830a4b439bfeb86c70b0115c280377c84714b , < 4ae2e501331aaa506eaf760339bb2f43e5769395
(git)
Affected: 837830a4b439bfeb86c70b0115c280377c84714b , < 041e2ac88caef286b39064e83e825e3f53113d36 (git) Affected: 837830a4b439bfeb86c70b0115c280377c84714b , < fc95c8b02c6160936f1f3d8d9d7f4f66f3c84b49 (git) Affected: 837830a4b439bfeb86c70b0115c280377c84714b , < 5e5e967e8505fbdabfb6497367ec1b808cadc356 (git) Affected: 837830a4b439bfeb86c70b0115c280377c84714b , < 515ad530795c118f012539ed76d02bacfd426d89 (git) |
guessed | |
| Linux | Linux |
Affected:
5.9
Unaffected: 0 , < 5.9 (semver) Unaffected: 5.10.188 , ≤ 5.10.* (semver) Unaffected: 5.15.121 , ≤ 5.15.* (semver) Unaffected: 6.1.39 , ≤ 6.1.* (semver) Unaffected: 6.4.4 , ≤ 6.4.* (semver) Unaffected: 6.5 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "4ae2e501331aaa506eaf760339bb2f43e5769395",
"status": "affected",
"version": "837830a4b439bfeb86c70b0115c280377c84714b",
"versionType": "git"
},
{
"lessThan": "041e2ac88caef286b39064e83e825e3f53113d36",
"status": "affected",
"version": "837830a4b439bfeb86c70b0115c280377c84714b",
"versionType": "git"
},
{
"lessThan": "fc95c8b02c6160936f1f3d8d9d7f4f66f3c84b49",
"status": "affected",
"version": "837830a4b439bfeb86c70b0115c280377c84714b",
"versionType": "git"
},
{
"lessThan": "5e5e967e8505fbdabfb6497367ec1b808cadc356",
"status": "affected",
"version": "837830a4b439bfeb86c70b0115c280377c84714b",
"versionType": "git"
},
{
"lessThan": "515ad530795c118f012539ed76d02bacfd426d89",
"status": "affected",
"version": "837830a4b439bfeb86c70b0115c280377c84714b",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.9"
},
{
"lessThan": "5.9",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.188",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.121",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.39",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.*",
"status": "unaffected",
"version": "6.4.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.5",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.188",
"versionStartIncluding": "5.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.121",
"versionStartIncluding": "5.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.39",
"versionStartIncluding": "5.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.4.4",
"versionStartIncluding": "5.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.5",
"versionStartIncluding": "5.9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: do not ignore genmask when looking up chain by id\n\nWhen adding a rule to a chain referring to its ID, if that chain had been\ndeleted on the same batch, the rule might end up referring to a deleted\nchain.\n\nThis will lead to a WARNING like following:\n\n[ 33.098431] ------------[ cut here ]------------\n[ 33.098678] WARNING: CPU: 5 PID: 69 at net/netfilter/nf_tables_api.c:2037 nf_tables_chain_destroy+0x23d/0x260\n[ 33.099217] Modules linked in:\n[ 33.099388] CPU: 5 PID: 69 Comm: kworker/5:1 Not tainted 6.4.0+ #409\n[ 33.099726] Workqueue: events nf_tables_trans_destroy_work\n[ 33.100018] RIP: 0010:nf_tables_chain_destroy+0x23d/0x260\n[ 33.100306] Code: 8b 7c 24 68 e8 64 9c ed fe 4c 89 e7 e8 5c 9c ed fe 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 89 c6 89 c7 c3 cc cc cc cc \u003c0f\u003e 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 89 c6 89 c7\n[ 33.101271] RSP: 0018:ffffc900004ffc48 EFLAGS: 00010202\n[ 33.101546] RAX: 0000000000000001 RBX: ffff888006fc0a28 RCX: 0000000000000000\n[ 33.101920] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n[ 33.102649] RBP: ffffc900004ffc78 R08: 0000000000000000 R09: 0000000000000000\n[ 33.103018] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880135ef500\n[ 33.103385] R13: 0000000000000000 R14: dead000000000122 R15: ffff888006fc0a10\n[ 33.103762] FS: 0000000000000000(0000) GS:ffff888024c80000(0000) knlGS:0000000000000000\n[ 33.104184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 33.104493] CR2: 00007fe863b56a50 CR3: 00000000124b0001 CR4: 0000000000770ee0\n[ 33.104872] PKRU: 55555554\n[ 33.104999] Call Trace:\n[ 33.105113] \u003cTASK\u003e\n[ 33.105214] ? show_regs+0x72/0x90\n[ 33.105371] ? __warn+0xa5/0x210\n[ 33.105520] ? nf_tables_chain_destroy+0x23d/0x260\n[ 33.105732] ? report_bug+0x1f2/0x200\n[ 33.105902] ? handle_bug+0x46/0x90\n[ 33.106546] ? exc_invalid_op+0x19/0x50\n[ 33.106762] ? asm_exc_invalid_op+0x1b/0x20\n[ 33.106995] ? nf_tables_chain_destroy+0x23d/0x260\n[ 33.107249] ? nf_tables_chain_destroy+0x30/0x260\n[ 33.107506] nf_tables_trans_destroy_work+0x669/0x680\n[ 33.107782] ? mark_held_locks+0x28/0xa0\n[ 33.107996] ? __pfx_nf_tables_trans_destroy_work+0x10/0x10\n[ 33.108294] ? _raw_spin_unlock_irq+0x28/0x70\n[ 33.108538] process_one_work+0x68c/0xb70\n[ 33.108755] ? lock_acquire+0x17f/0x420\n[ 33.108977] ? __pfx_process_one_work+0x10/0x10\n[ 33.109218] ? do_raw_spin_lock+0x128/0x1d0\n[ 33.109435] ? _raw_spin_lock_irq+0x71/0x80\n[ 33.109634] worker_thread+0x2bd/0x700\n[ 33.109817] ? __pfx_worker_thread+0x10/0x10\n[ 33.110254] kthread+0x18b/0x1d0\n[ 33.110410] ? __pfx_kthread+0x10/0x10\n[ 33.110581] ret_from_fork+0x29/0x50\n[ 33.110757] \u003c/TASK\u003e\n[ 33.110866] irq event stamp: 1651\n[ 33.111017] hardirqs last enabled at (1659): [\u003cffffffffa206a209\u003e] __up_console_sem+0x79/0xa0\n[ 33.111379] hardirqs last disabled at (1666): [\u003cffffffffa206a1ee\u003e] __up_console_sem+0x5e/0xa0\n[ 33.111740] softirqs last enabled at (1616): [\u003cffffffffa1f5d40e\u003e] __irq_exit_rcu+0x9e/0xe0\n[ 33.112094] softirqs last disabled at (1367): [\u003cffffffffa1f5d40e\u003e] __irq_exit_rcu+0x9e/0xe0\n[ 33.112453] ---[ end trace 0000000000000000 ]---\n\nThis is due to the nft_chain_lookup_byid ignoring the genmask. After this\nchange, adding the new rule will fail as it will not find the chain."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - nftables is configured through a netlink (NFNL_SUBSYS_NFTABLES) socket handled by nfnetlink_rcv; triggering the bug requires sending a local netlink batch, not remote network traffic.\nAC:L - The attacker crafts a single deterministic batch (NEWCHAIN + DELCHAIN + NEWRULE-by-id) and controls every side of the sequence; there is no race or memory-layout condition outside the attacker\u0027s control.\nPR:L - Entry is gated by netlink_net_capable(CAP_NET_ADMIN), which checks the net namespace\u0027s user namespace, so an unprivileged user can reach it via unshare -Urn rather than needing real root.\nUI:N - The full exploit is performed by the attacker\u0027s own process with no action required from any other user.\nS:U - The corruption stays within the kernel\u0027s own security authority, yielding local privilege escalation without crossing a virtualization or IOMMU boundary.\nC:H - A rule retains a dangling reference to a freed chain object; this use-after-free lets the attacker reallocate and read controlled/leaked kernel heap contents, giving high-impact information disclosure.\nI:H - The UAF over nftables chain objects enables heap-spray reallocation and arbitrary write primitives, exploitable for control-flow hijacking and full local privilege escalation.\nA:H - Freeing a chain still referenced by a live rule reliably corrupts kernel memory and panics/oopses the kernel, causing denial of service."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T09:14:24.330Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/4ae2e501331aaa506eaf760339bb2f43e5769395"
},
{
"url": "https://git.kernel.org/stable/c/041e2ac88caef286b39064e83e825e3f53113d36"
},
{
"url": "https://git.kernel.org/stable/c/fc95c8b02c6160936f1f3d8d9d7f4f66f3c84b49"
},
{
"url": "https://git.kernel.org/stable/c/5e5e967e8505fbdabfb6497367ec1b808cadc356"
},
{
"url": "https://git.kernel.org/stable/c/515ad530795c118f012539ed76d02bacfd426d89"
}
],
"title": "netfilter: nf_tables: do not ignore genmask when looking up chain by id",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-53492",
"datePublished": "2025-10-01T11:45:44.019Z",
"dateReserved": "2025-10-01T11:39:39.403Z",
"dateUpdated": "2026-08-05T09:14:24.330Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-53492",
"date": "2026-09-16",
"epss": "0.00165",
"percentile": "0.06142"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2023-53492\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-01T12:15:52.390\",\"lastModified\":\"2026-08-04T10:19:09.000\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nf_tables: do not ignore genmask when looking up chain by id\\n\\nWhen adding a rule to a chain referring to its ID, if that chain had been\\ndeleted on the same batch, the rule might end up referring to a deleted\\nchain.\\n\\nThis will lead to a WARNING like following:\\n\\n[ 33.098431] ------------[ cut here ]------------\\n[ 33.098678] WARNING: CPU: 5 PID: 69 at net/netfilter/nf_tables_api.c:2037 nf_tables_chain_destroy+0x23d/0x260\\n[ 33.099217] Modules linked in:\\n[ 33.099388] CPU: 5 PID: 69 Comm: kworker/5:1 Not tainted 6.4.0+ #409\\n[ 33.099726] Workqueue: events nf_tables_trans_destroy_work\\n[ 33.100018] RIP: 0010:nf_tables_chain_destroy+0x23d/0x260\\n[ 33.100306] Code: 8b 7c 24 68 e8 64 9c ed fe 4c 89 e7 e8 5c 9c ed fe 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 89 c6 89 c7 c3 cc cc cc cc \u003c0f\u003e 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 89 c6 89 c7\\n[ 33.101271] RSP: 0018:ffffc900004ffc48 EFLAGS: 00010202\\n[ 33.101546] RAX: 0000000000000001 RBX: ffff888006fc0a28 RCX: 0000000000000000\\n[ 33.101920] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\\n[ 33.102649] RBP: ffffc900004ffc78 R08: 0000000000000000 R09: 0000000000000000\\n[ 33.103018] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880135ef500\\n[ 33.103385] R13: 0000000000000000 R14: dead000000000122 R15: ffff888006fc0a10\\n[ 33.103762] FS: 0000000000000000(0000) GS:ffff888024c80000(0000) knlGS:0000000000000000\\n[ 33.104184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[ 33.104493] CR2: 00007fe863b56a50 CR3: 00000000124b0001 CR4: 0000000000770ee0\\n[ 33.104872] PKRU: 55555554\\n[ 33.104999] Call Trace:\\n[ 33.105113] \u003cTASK\u003e\\n[ 33.105214] ? show_regs+0x72/0x90\\n[ 33.105371] ? __warn+0xa5/0x210\\n[ 33.105520] ? nf_tables_chain_destroy+0x23d/0x260\\n[ 33.105732] ? report_bug+0x1f2/0x200\\n[ 33.105902] ? handle_bug+0x46/0x90\\n[ 33.106546] ? exc_invalid_op+0x19/0x50\\n[ 33.106762] ? asm_exc_invalid_op+0x1b/0x20\\n[ 33.106995] ? nf_tables_chain_destroy+0x23d/0x260\\n[ 33.107249] ? nf_tables_chain_destroy+0x30/0x260\\n[ 33.107506] nf_tables_trans_destroy_work+0x669/0x680\\n[ 33.107782] ? mark_held_locks+0x28/0xa0\\n[ 33.107996] ? __pfx_nf_tables_trans_destroy_work+0x10/0x10\\n[ 33.108294] ? _raw_spin_unlock_irq+0x28/0x70\\n[ 33.108538] process_one_work+0x68c/0xb70\\n[ 33.108755] ? lock_acquire+0x17f/0x420\\n[ 33.108977] ? __pfx_process_one_work+0x10/0x10\\n[ 33.109218] ? do_raw_spin_lock+0x128/0x1d0\\n[ 33.109435] ? _raw_spin_lock_irq+0x71/0x80\\n[ 33.109634] worker_thread+0x2bd/0x700\\n[ 33.109817] ? __pfx_worker_thread+0x10/0x10\\n[ 33.110254] kthread+0x18b/0x1d0\\n[ 33.110410] ? __pfx_kthread+0x10/0x10\\n[ 33.110581] ret_from_fork+0x29/0x50\\n[ 33.110757] \u003c/TASK\u003e\\n[ 33.110866] irq event stamp: 1651\\n[ 33.111017] hardirqs last enabled at (1659): [\u003cffffffffa206a209\u003e] __up_console_sem+0x79/0xa0\\n[ 33.111379] hardirqs last disabled at (1666): [\u003cffffffffa206a1ee\u003e] __up_console_sem+0x5e/0xa0\\n[ 33.111740] softirqs last enabled at (1616): [\u003cffffffffa1f5d40e\u003e] __irq_exit_rcu+0x9e/0xe0\\n[ 33.112094] softirqs last disabled at (1367): [\u003cffffffffa1f5d40e\u003e] __irq_exit_rcu+0x9e/0xe0\\n[ 33.112453] ---[ end trace 0000000000000000 ]---\\n\\nThis is due to the nft_chain_lookup_byid ignoring the genmask. After this\\nchange, adding the new rule will fail as it will not find the chain.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/netfilter/nf_tables_api.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"837830a4b439bfeb86c70b0115c280377c84714b\",\"lessThan\":\"4ae2e501331aaa506eaf760339bb2f43e5769395\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"837830a4b439bfeb86c70b0115c280377c84714b\",\"lessThan\":\"041e2ac88caef286b39064e83e825e3f53113d36\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"837830a4b439bfeb86c70b0115c280377c84714b\",\"lessThan\":\"fc95c8b02c6160936f1f3d8d9d7f4f66f3c84b49\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"837830a4b439bfeb86c70b0115c280377c84714b\",\"lessThan\":\"5e5e967e8505fbdabfb6497367ec1b808cadc356\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"837830a4b439bfeb86c70b0115c280377c84714b\",\"lessThan\":\"515ad530795c118f012539ed76d02bacfd426d89\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/netfilter/nf_tables_api.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.9\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.9\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.188\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.121\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.39\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.4.4\",\"lessThanOrEqual\":\"6.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.5\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"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},{\"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\":\"5.9\",\"versionEndExcluding\":\"5.10.188\",\"matchCriteriaId\":\"D00465E7-4C90-4F70-BFB1-A877E520AD2B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.121\",\"matchCriteriaId\":\"EC77775B-EC31-4966-966C-1286C02B2A85\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.39\",\"matchCriteriaId\":\"9BD1D4A1-304D-4187-8178-6D7C0050B1AF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.4.4\",\"matchCriteriaId\":\"A91BC267-63EE-413E-A6EF-6B96C2A278D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0B3E6E4D-E24E-4630-B00C-8C9901C597B0\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/041e2ac88caef286b39064e83e825e3f53113d36\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4ae2e501331aaa506eaf760339bb2f43e5769395\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/515ad530795c118f012539ed76d02bacfd426d89\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5e5e967e8505fbdabfb6497367ec1b808cadc356\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fc95c8b02c6160936f1f3d8d9d7f4f66f3c84b49\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-08-04T22:55:29+00:00",
"cve": "CVE-2023-53492",
"id": "CVE-2023-53492",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:fixed": "166",
"product_status:known_affected": "108",
"product_status:known_not_affected": "166",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: netfilter: nf_tables: do not ignore genmask when looking up chain by id",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53492.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-11T02:20:57Z",
"cve": "CVE-2023-53492",
"id": "CVE-2023-53492",
"initial_release_date": "2025-10-01T23:30:15Z",
"product_status:known_not_affected": "222",
"product_status:recommended": "562",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2023-53492",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53492.json",
"version": "50"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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