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CVE-2026-53000

In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfree_rcu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nf_hook_ops that are used to register the callbacks. However, in v5.14 I added the ability to dump the active netfilter hooks from userspace. This code will peek back into the nf_hook_ops that are available at the tail of the pointer-array blob used by the
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d4a71ac58ed28929a04c2a08a78d0635ff6675fc643f8a5dca9f4648d3bf762f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 10 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv4/netfilter/iptable_nat.c","net/ipv6/netfilter/ip6table_nat.c","net/netfilter/nf_nat_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"32fdd2e38e7435a368d88f5977a7d6585ebc8b0e","status":"affected","version":"e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9","versionType":"git"},{"lessThan":"3c7511f38ab511b791196b13ae48bf4973bf7dfd","status":"affected","version":"e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9","versionType":"git"},{"lessThan":"6eda0d771f94267f73f5…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv4/netfilter/iptable_nat.c","net/ipv6/netfilter/ip6table_nat.c","net/netfilter/nf_nat_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.14"},{"lessThan":"5.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","statu…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/7

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/6

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/4
cvss · 2 assertions

{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/metrics/1/cvssV3_1

{"metric":{"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"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/cna/metrics/0/cvssV3_1

Affected products and versions

10 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv4/netfilter/iptable_nat.c","net/ipv6/netfilter/ip6table_nat.c","net/netfilter/nf_nat_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"32fdd2e38e7435a368d88f5977a7d6585ebc8b0e","status":"affected","version":"e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9","versionType":"git"},{"lessThan":"3c7511f38ab511b791196b13ae48bf4973bf7dfd","status":"affected","version":"e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9","versionType":"git"},{"lessThan":"6eda0d771f94267f73f5…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv4/netfilter/iptable_nat.c","net/ipv6/netfilter/ip6table_nat.c","net/netfilter/nf_nat_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.14"},{"lessThan":"5.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","statu…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/7
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/6
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/affected/4

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/metrics/1/cvssV3_1
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-763","description":"Release of Invalid Pointer or Reference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

6 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-53000"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/references/0
{"name":"RHBZ#2492273","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492273"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/references/1
{"url":"https://git.kernel.org/stable/c/32fdd2e38e7435a368d88f5977a7d6585ebc8b0e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/3c7511f38ab511b791196b13ae48bf4973bf7dfd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/6eda0d771f94267f73f57c94630aa47e90957915"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/cna/references/2
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53000.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7f4838293378f235385648df813edaaa3d0926fe6d6d34b2943af30d649180ad · sha256:dbbbd28cc1b1ceae… · /containers/adp/0/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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