CVE-2023-53619 (GCVE-0-2023-53619)
Vulnerability from cvelistv5 – Published: 2025-10-07 15:19 – Updated: 2026-08-05 09:15
VLAI
EPSS
VEX
Title
netfilter: conntrack: Avoid nf_ct_helper_hash uses after free
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: Avoid nf_ct_helper_hash uses after free
If nf_conntrack_init_start() fails (for example due to a
register_nf_conntrack_bpf() failure), the nf_conntrack_helper_fini()
clean-up path frees the nf_ct_helper_hash map.
When built with NF_CONNTRACK=y, further netfilter modules (e.g:
netfilter_conntrack_ftp) can still be loaded and call
nf_conntrack_helpers_register(), independently of whether nf_conntrack
initialized correctly. This accesses the nf_ct_helper_hash dangling
pointer and causes a uaf, possibly leading to random memory corruption.
This patch guards nf_conntrack_helper_register() from accessing a freed
or uninitialized nf_ct_helper_hash pointer and fixes possible
uses-after-free when loading a conntrack module.
Severity
7.8 (High)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
12f7a505331e6b2754684b509f2ac8f0011ce644 , < 4ee69c91cb8f9ca144bc0861969e5a1a3c6152a7
(git)
Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 00716f25f9697d02a0d9bd622575c7c7321ba3d0 (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 61c7a5256543ae7d24cd9d21853d514c8632e1e9 (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 8289d422f5e484efe4a565fe18e862ecd621c175 (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 6f03ce2f1abcb9f9d0511e3659ca6eb60e39f566 (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 05561f822f27b9fa88fa5504ddec34bf38833034 (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < fce5cc7cbd4b92f979bf02c9ec5fb69aaeba92d7 (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 6eef7a2b933885a17679eb8ed0796ddf0ee5309b (git) |
guessed | |
| Linux | Linux |
Affected:
3.6
Unaffected: 0 , < 3.6 (semver) Unaffected: 4.14.322 , ≤ 4.14.* (semver) Unaffected: 4.19.291 , ≤ 4.19.* (semver) Unaffected: 5.4.251 , ≤ 5.4.* (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_conntrack_helper.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "4ee69c91cb8f9ca144bc0861969e5a1a3c6152a7",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "00716f25f9697d02a0d9bd622575c7c7321ba3d0",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "61c7a5256543ae7d24cd9d21853d514c8632e1e9",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "8289d422f5e484efe4a565fe18e862ecd621c175",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "6f03ce2f1abcb9f9d0511e3659ca6eb60e39f566",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "05561f822f27b9fa88fa5504ddec34bf38833034",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "fce5cc7cbd4b92f979bf02c9ec5fb69aaeba92d7",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "6eef7a2b933885a17679eb8ed0796ddf0ee5309b",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/netfilter/nf_conntrack_helper.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.6"
},
{
"lessThan": "3.6",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.322",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.291",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.251",
"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": "4.14.322",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.291",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.251",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.188",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.121",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.39",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.4.4",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.5",
"versionStartIncluding": "3.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: conntrack: Avoid nf_ct_helper_hash uses after free\n\nIf nf_conntrack_init_start() fails (for example due to a\nregister_nf_conntrack_bpf() failure), the nf_conntrack_helper_fini()\nclean-up path frees the nf_ct_helper_hash map.\n\nWhen built with NF_CONNTRACK=y, further netfilter modules (e.g:\nnetfilter_conntrack_ftp) can still be loaded and call\nnf_conntrack_helpers_register(), independently of whether nf_conntrack\ninitialized correctly. This accesses the nf_ct_helper_hash dangling\npointer and causes a uaf, possibly leading to random memory corruption.\n\nThis patch guards nf_conntrack_helper_register() from accessing a freed\nor uninitialized nf_ct_helper_hash pointer and fixes possible\nuses-after-free when loading a conntrack module."
}
],
"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 - The trigger is a local netlink/setsockopt operation (nftables ct helper object or iptables `-j CT --helper`) that drives conntrack-helper module autoloading, or a direct module load; no network-facing code path reaches `nf_conntrack_helper_register()`.\nAC:L - Per CVSS 3.1 \u00a72.1.2, the base metrics are scored with the vulnerable component in its vulnerable configuration (built-in conntrack whose init failed, which is deterministic per boot on affected builds); in that state the attacker triggers `nf_conntrack_helper_register()` on demand and repeatably by naming different helpers, with no race or unknowable state to win.\nPR:L - An unprivileged local user obtains CAP_NET_ADMIN via `unshare -Urn`, since nfnetlink/nftables gates only on `netlink_net_capable(skb, CAP_NET_ADMIN)` and `__request_module()` performs no capability check, so `nft_ct_helper_obj_init()` autoloads the helper module that hits the dangling hash.\nUI:N - No victim action is needed; the attacker performs the entire sequence itself in its own network/user namespace.\nS:U - The corruption is confined to kernel memory within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The bucket walk dereferences attacker-controlled pointers from the reallocated page (`strcmp(cur-\u003ename, me-\u003ename)`) giving an arbitrary-read/oracle primitive, and `rcu_assign_pointer(h-\u003efirst, n)` writes a module `.data` pointer into memory the attacker can spray and read back, defeating KASLR.\nI:H - `WRITE_ONCE(first-\u003epprev, \u0026n-\u003enext)` in `hlist_add_head_rcu()` writes a known kernel pointer to an address fully controlled by the attacker-sprayed contents of the freed page \u2014 a write-what/where primitive suitable for control-flow hijack.\nA:H - Use-after-free on a freed page walked as an hlist reliably causes oops/panic or the \"random memory corruption\" the fix\u0027s author describes, taking down the kernel."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T09:15:10.461Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/4ee69c91cb8f9ca144bc0861969e5a1a3c6152a7"
},
{
"url": "https://git.kernel.org/stable/c/00716f25f9697d02a0d9bd622575c7c7321ba3d0"
},
{
"url": "https://git.kernel.org/stable/c/61c7a5256543ae7d24cd9d21853d514c8632e1e9"
},
{
"url": "https://git.kernel.org/stable/c/8289d422f5e484efe4a565fe18e862ecd621c175"
},
{
"url": "https://git.kernel.org/stable/c/6f03ce2f1abcb9f9d0511e3659ca6eb60e39f566"
},
{
"url": "https://git.kernel.org/stable/c/05561f822f27b9fa88fa5504ddec34bf38833034"
},
{
"url": "https://git.kernel.org/stable/c/fce5cc7cbd4b92f979bf02c9ec5fb69aaeba92d7"
},
{
"url": "https://git.kernel.org/stable/c/6eef7a2b933885a17679eb8ed0796ddf0ee5309b"
}
],
"title": "netfilter: conntrack: Avoid nf_ct_helper_hash uses after free",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-53619",
"datePublished": "2025-10-07T15:19:26.003Z",
"dateReserved": "2025-10-07T15:16:59.655Z",
"dateUpdated": "2026-08-05T09:15:10.461Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-53619",
"date": "2026-09-18",
"epss": "0.00215",
"percentile": "0.12189"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/nf_conntrack_helper.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "4ee69c91cb8f9ca144bc0861969e5a1a3c6152a7",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "00716f25f9697d02a0d9bd622575c7c7321ba3d0",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "61c7a5256543ae7d24cd9d21853d514c8632e1e9",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "8289d422f5e484efe4a565fe18e862ecd621c175",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "6f03ce2f1abcb9f9d0511e3659ca6eb60e39f566",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "05561f822f27b9fa88fa5504ddec34bf38833034",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "fce5cc7cbd4b92f979bf02c9ec5fb69aaeba92d7",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
},
{
"lessThan": "6eef7a2b933885a17679eb8ed0796ddf0ee5309b",
"status": "affected",
"version": "12f7a505331e6b2754684b509f2ac8f0011ce644",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/netfilter/nf_conntrack_helper.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.6"
},
{
"lessThan": "3.6",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.322",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.291",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.251",
"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"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B2908A09-767F-4F8F-814F-257B8287CFDF",
"versionEndExcluding": "4.14.322",
"versionStartIncluding": "3.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D2D2CA9F-4CC4-4AF5-8C6D-E58415AB782E",
"versionEndExcluding": "4.19.291",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7FA663C4-CA72-4B5A-8592-7354D978F58E",
"versionEndExcluding": "5.4.251",
"versionStartIncluding": "4.20",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "43CAE50A-4A6C-488E-813C-F8DB77C13C8B",
"versionEndExcluding": "5.10.188",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EC77775B-EC31-4966-966C-1286C02B2A85",
"versionEndExcluding": "5.15.121",
"versionStartIncluding": "5.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "9BD1D4A1-304D-4187-8178-6D7C0050B1AF",
"versionEndExcluding": "6.1.39",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A91BC267-63EE-413E-A6EF-6B96C2A278D1",
"versionEndExcluding": "6.4.4",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*",
"matchCriteriaId": "0B3E6E4D-E24E-4630-B00C-8C9901C597B0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: conntrack: Avoid nf_ct_helper_hash uses after free\n\nIf nf_conntrack_init_start() fails (for example due to a\nregister_nf_conntrack_bpf() failure), the nf_conntrack_helper_fini()\nclean-up path frees the nf_ct_helper_hash map.\n\nWhen built with NF_CONNTRACK=y, further netfilter modules (e.g:\nnetfilter_conntrack_ftp) can still be loaded and call\nnf_conntrack_helpers_register(), independently of whether nf_conntrack\ninitialized correctly. This accesses the nf_ct_helper_hash dangling\npointer and causes a uaf, possibly leading to random memory corruption.\n\nThis patch guards nf_conntrack_helper_register() from accessing a freed\nor uninitialized nf_ct_helper_hash pointer and fixes possible\nuses-after-free when loading a conntrack module."
}
],
"id": "CVE-2023-53619",
"lastModified": "2026-08-04T10:19:14.940",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2025-10-07T16:15:44.473",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/00716f25f9697d02a0d9bd622575c7c7321ba3d0"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/05561f822f27b9fa88fa5504ddec34bf38833034"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/4ee69c91cb8f9ca144bc0861969e5a1a3c6152a7"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/61c7a5256543ae7d24cd9d21853d514c8632e1e9"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/6eef7a2b933885a17679eb8ed0796ddf0ee5309b"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/6f03ce2f1abcb9f9d0511e3659ca6eb60e39f566"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/8289d422f5e484efe4a565fe18e862ecd621c175"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/fce5cc7cbd4b92f979bf02c9ec5fb69aaeba92d7"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-08-04T19:18:19+00:00",
"cve": "CVE-2023-53619",
"id": "CVE-2023-53619",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_affected": "198",
"product_status:known_not_affected": "76",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: netfilter: conntrack: Avoid nf_ct_helper_hash uses after free",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53619.json",
"version": "3"
}
}
}
Loading…
Loading…
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.
Loading…
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.
Loading…
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.
Loading…