CVE Explorer

CVE-2026-23381

In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never initialized because inet6_init() exits before ndisc_init() is called which initializes it. Then, if neigh_suppress is enabled and an ICMPv6 Neighbor Discovery packet reaches the bridge, br_do_suppress_nd() will dereference ipv6_stub->nd_tbl which is NULL, passing it to neigh_lookup(). This causes

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2b89ae6df2a13f0249f84e4cd50a011347f002c32d4939e49ec469099728406c

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 12 assertions

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/3

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/0

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bridge/br_device.c","net/bridge/br_input.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a9d712ccfeef737c0e700a4b5b98f310e07b6b60","status":"affected","version":"ed842faeb2bd49256f00485402f3113205f91d30","versionType":"git"},{"lessThan":"a5c56e65b685360dd3f2278aeff8c21061feb665","status":"affected","version":"ed842faeb2bd49256f00485402f3113205f91d30","versionType":"git"},{"lessThan":"7a894eb5de246d79f13105c55a67381039a24d44","status":"affected","version":…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/1

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

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/4

{"defaultStatus":"affected","product":"Linux","programFiles":["net/bridge/br_device.c","net/bridge/br_input.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.15"},{"lessThan":"4.15","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":"6.1.167","version…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/cna/affected/1

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/6

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/9

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/7

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/2

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/5

Affected products and versions

12 source assertions

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/3

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/1

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

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/4

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/cna/affected/1

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/6

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/9

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/7

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/2

{"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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/affected/5

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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /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:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/adp/0/references/0

{"url":"https://git.kernel.org/stable/c/20ef5c25422f97dd09d751e5ae6c18406cdc78e6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/cna/references/6

{"url":"https://git.kernel.org/stable/c/33dec6f10777d5a8f71c0a200f690da5ae3c2e55"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/7a894eb5de246d79f13105c55a67381039a24d44"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/a12cdaa3375f0bd3c8f4e564be7c143529abfe5b"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/a5c56e65b685360dd3f2278aeff8c21061feb665"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/a9d712ccfeef737c0e700a4b5b98f310e07b6b60"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/aa73deb3b6b730ec280d45b3f423bfa9e17bc122"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/e5e890630533bdc15b26a34bb8e7ef539bdf1322"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7a4d9f7a52fd8b72a6bc3442a898052c4fbf3856a38799a456da1b6efaf5de52 · sha256:bf190d4bebe071df… · /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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