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CVE-2026-43040

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak When processing Router Advertisements with user options the kernel builds an RTM_NEWNDUSEROPT netlink message. The nduseroptmsg struct has three padding fields that are never zeroed and can leak kernel data The fix is simple, just zeroes the padding fields.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:60887d23577fe8e7f0844a2db8610b0a4f60253d465aa0d103e3d6889b9ec151
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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/4

{"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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/7

{"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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/6

{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv6/ndisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.24"},{"lessThan":"2.6.24","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","version":"6.1.168","versionType":"semver"},{"lessThan…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/affected/1

{"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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/0

{"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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/5

{"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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/2

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/ndisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1da9023f6b071a38e5430ffbce4b70b2b1ac4f9c","status":"affected","version":"31910575a9de61e78065e93846e8e7a4894a18bf","versionType":"git"},{"lessThan":"2fe4d0ba690a69ad6ae9f7ab9bdc96e02610b648","status":"affected","version":"31910575a9de61e78065e93846e8e7a4894a18bf","versionType":"git"},{"lessThan":"11d7fe97421cfc81549940c20ed5ac9472d6db05","status":"affected","version":"31910575a9de61e78065e93846e8e…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/1

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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/4
{"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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/7
{"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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/6
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv6/ndisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.24"},{"lessThan":"2.6.24","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","version":"6.1.168","versionType":"semver"},{"lessThan…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/affected/1
{"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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/0
{"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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/5
{"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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/2
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/ndisc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1da9023f6b071a38e5430ffbce4b70b2b1ac4f9c","status":"affected","version":"31910575a9de61e78065e93846e8e7a4894a18bf","versionType":"git"},{"lessThan":"2fe4d0ba690a69ad6ae9f7ab9bdc96e02610b648","status":"affected","version":"31910575a9de61e78065e93846e8e7a4894a18bf","versionType":"git"},{"lessThan":"11d7fe97421cfc81549940c20ed5ac9472d6db05","status":"affected","version":"31910575a9de61e78065e93846e8e…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/affected/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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /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:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/adp/0/references/0
{"url":"https://git.kernel.org/stable/c/11d7fe97421cfc81549940c20ed5ac9472d6db05"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/1da9023f6b071a38e5430ffbce4b70b2b1ac4f9c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/2fe4d0ba690a69ad6ae9f7ab9bdc96e02610b648"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/4f810c686fde509d1cdaa706322d9d2531f8f1a4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/7f56d87e527bb5a13c3e8b0d5840cb6332822f6d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/ae05340ccaa9d347fe85415609e075545bec589f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/b485eef3d97b7aae55ce669b6de555ec81f3d21c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/ef3645606e4a635d5062a492f22b7f490852ee67"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51b57e6fb94c8b795e87141ff1f0b5d7f446c9fddcf714f62edf43dfe68dd339 · sha256:80ad96051c146dd7… · /containers/cna/references/6

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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