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CVE-2026-23204

In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_u32: use skb_header_pointer_careful() skb_header_pointer() does not fully validate negative @offset values. Use skb_header_pointer_careful() instead. GangMin Kim provided a report and a repro fooling u32_classify(): BUG: KASAN: slab-out-of-bounds in u32_classify+0x1180/0x11b0 net/sched/cls_u32.c:221
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:56247ddcc66a5dcb681ae9d314365971a70e1c4706b2ccf8744637eddfe0cc35
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":"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/9

{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/2

{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/6

{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/7

{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/3

{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/5

{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/0

{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/8

{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/1

{"defaultStatus":"affected","product":"Linux","programFiles":["net/sched/cls_u32.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.35"},{"lessThan":"2.6.35","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.260","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessT…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/sched/cls_u32.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"66e4b63d61c15de6ca5332d9ca6db59a404d7136","status":"affected","version":"fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d","versionType":"git"},{"lessThan":"29681ed51e737be14d18ecd1c304c57002e4b72c","status":"affected","version":"fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d","versionType":"git"},{"lessThan":"cfa745830e45ecb75c061aa34330ee0cac941cc7","status":"affected","version":"fbc2e7d9cf49e0bf89b9e91fd6…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/affected/0

{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/4

Affected products and versions

12 source assertions
{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/9
{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/2
{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/6
{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/7
{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/3
{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/5
{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/0
{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/8
{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/1
{"defaultStatus":"affected","product":"Linux","programFiles":["net/sched/cls_u32.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.35"},{"lessThan":"2.6.35","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.260","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessT…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/sched/cls_u32.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"66e4b63d61c15de6ca5332d9ca6db59a404d7136","status":"affected","version":"fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d","versionType":"git"},{"lessThan":"29681ed51e737be14d18ecd1c304c57002e4b72c","status":"affected","version":"fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d","versionType":"git"},{"lessThan":"cfa745830e45ecb75c061aa34330ee0cac941cc7","status":"affected","version":"fbc2e7d9cf49e0bf89b9e91fd6…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/affected/0
{"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:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/affected/4

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/metrics/0/cvssV3_1

Source references

9 source assertions
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/references/1
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/adp/1/references/0
{"url":"https://git.kernel.org/stable/c/13336a6239b9d7c6e61483017bb8bdfe3ceb10a5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/29681ed51e737be14d18ecd1c304c57002e4b72c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/66e4b63d61c15de6ca5332d9ca6db59a404d7136"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/8a672f177ebe19c93d795fbe967846084fbc7943"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/cabd1a976375780dabab888784e356f574bbaed8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/cfa745830e45ecb75c061aa34330ee0cac941cc7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/e41a23e61259f5526af875c3b86b3d42a9bae0e5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8621655549ec08a204c0eb7b2b1112fa7ad307ca91061d2d69631a0a4d3c73be · sha256:1e7db8178b2c1ffe… · /containers/cna/references/4

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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