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CVE-2026-31665

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: fix use-after-free in timeout object destroy nft_ct_timeout_obj_destroy() frees the timeout object with kfree() immediately after nf_ct_untimeout(), without waiting for an RCU grace period. Concurrent packet processing on other CPUs may still hold RCU-protected references to the timeout object obtained via rcu_dereference() in nf_ct_timeout_data(). Add an rcu_head to struct nf_ct_timeout and use kfree_rcu()
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3cb50b6a425f49d68e25b0d0d38efdf05ac2dbee2332e6f294de921b56a58222
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 12 assertions

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/4

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/6

{"defaultStatus":"affected","product":"Linux","programFiles":["include/net/netfilter/nf_conntrack_timeout.h","net/netfilter/nft_ct.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","vers…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/affected/1

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/2

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/1

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/5

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/7

{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/net/netfilter/nf_conntrack_timeout.h","net/netfilter/nft_ct.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c458fc1c278a65ad5381083121d39a479973ebed","status":"affected","version":"7e0b2b57f01d183e1c84114f1f2287737358d748","versionType":"git"},{"lessThan":"c581e5c8f2b59158f62efe61c1a3dc36189081ff","status":"affected","version":"7e0b2b57f01d183e1c84114f1f2287737358d748","versionType":"git"},{"lessThan":"f16fe84879a5280f05ebbcea593a189ba0f3e79a","status…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/affected/0

{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/9

{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/8

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/0

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/3

Affected products and versions

12 source assertions
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/4
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/6
{"defaultStatus":"affected","product":"Linux","programFiles":["include/net/netfilter/nf_conntrack_timeout.h","net/netfilter/nft_ct.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","vers…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/affected/1
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/2
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/1
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/5
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/7
{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/net/netfilter/nf_conntrack_timeout.h","net/netfilter/nft_ct.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c458fc1c278a65ad5381083121d39a479973ebed","status":"affected","version":"7e0b2b57f01d183e1c84114f1f2287737358d748","versionType":"git"},{"lessThan":"c581e5c8f2b59158f62efe61c1a3dc36189081ff","status":"affected","version":"7e0b2b57f01d183e1c84114f1f2287737358d748","versionType":"git"},{"lessThan":"f16fe84879a5280f05ebbcea593a189ba0f3e79a","status…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/9
{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/8
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/0
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/affected/3

Provider-owned CVSS observations

1 source assertion
{"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:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/metrics/0/cvssV3_1

Source references

10 source assertions
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/references/1
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/adp/0/references/0
{"url":"https://git.kernel.org/stable/c/070abdf1b04325b21a20a2a0c39a2208af107275"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/aa7cfa16f98f8ec3e6d47c34e1a8c1ae4b9b8b77"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/b42aca3660dc2627a29a38131597ca610dc451f9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/c458fc1c278a65ad5381083121d39a479973ebed"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/c581e5c8f2b59158f62efe61c1a3dc36189081ff"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/d0983b48c10d1509fd795c155f8b1e832e1369ff"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/f16fe84879a5280f05ebbcea593a189ba0f3e79a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/f8dca15a1b190787bbd03285304b569631160eda"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:13644836d60edca63b6c9255c9dbdc582f3453b13b235ed0574e6138b0f65458 · sha256:4a2dbcb42f927388… · /containers/cna/references/7

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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