CVE Explorer

CVE-2026-52981

In the Linux kernel, the following vulnerability has been resolved: neigh: let neigh_xmit take skb ownership neigh_xmit always releases the skb, except when no neighbour table is found. But even the first added user of neigh_xmit (mpls) relied on neigh_xmit to release the skb (or queue it for tx). sashiko reported: If neigh_xmit() is called with an uninitialized neighbor table (for example, NEIGH_ND_TABLE when IPv6 is disabled), it returns -EAFNOSUPPORT and bypasses its internal out_kfree_

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:666aa8ac7e52735eaa288626c5801f9268ace1db72e3613cccbb9fc34470421e

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/core/neighbour.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8a89054a1ec0767aec25ed2bbac933da6ba3cf5a","status":"affected","version":"4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62","versionType":"git"},{"lessThan":"9247d59ca15bf60a57dca08103f055d8a4340877","status":"affected","version":"4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62","versionType":"git"},{"lessThan":"0084712e0bee204b284510cdb63182fd5a30c2b7","status":"affected","version":"4fd3d7d9e868ffbdb0e7a67c5…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/core/neighbour.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.1"},{"lessThan":"4.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.141","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqu…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/metrics/0/cvssV3_1

Source references

6 source assertions

{"url":"https://git.kernel.org/stable/c/0084712e0bee204b284510cdb63182fd5a30c2b7"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/4438113be604ee67a7bf4f81da6e1cca41332ce4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/445e45a2c3a078316a62d2d331a570cf34ef5079"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/63063ba60d2dc334e34f1e3f9271d7f3f6f30307"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/8a89054a1ec0767aec25ed2bbac933da6ba3cf5a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/9247d59ca15bf60a57dca08103f055d8a4340877"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1d3355c78c69078555c467891b8be811088d17021a411c060abedf9dec651faf · sha256:b4732088b9adecfe… · /containers/cna/references/1

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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