CVE Explorer

CVE-2026-10640

Zephyr's IPv6 Neighbor Discovery send paths (net_ipv6_send_na, net_ipv6_send_ns, net_ipv6_send_rs in subsys/net/ip/ipv6_nbr.c) updated the per-interface ICMP-sent statistics by calling net_pkt_iface(pkt) after net_send_data(pkt) had already returned successfully. On the success path the network stack owns and releases the packet's reference (the L2/driver send unrefs it, e.g. ethernet_send -> net_pkt_unref), so for a freshly allocated packet with refcount 1 the net_pkt slab block can be freed be

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f263c5e3c217ba2e68c7a7ec5e8417548420632fce8898f0d4227ac17d30dee2

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"collectionURL":"https://github.com/zephyrproject-rtos/zephyr","defaultStatus":"unaffected","packageName":"zephyr","product":"zephyr","programFiles":["subsys/net/ip/ipv6_nbr.c"],"vendor":"zephyrproject","versions":[{"lessThan":"4.5.0","status":"affected","version":"3.3.0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5c987eec95dbdeae087a2324fe6ef0e029c74d8ede63837eed8176aa263aa4fb · sha256:f273ee272a051b5a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":4.2,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:5c987eec95dbdeae087a2324fe6ef0e029c74d8ede63837eed8176aa263aa4fb · sha256:f273ee272a051b5a… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-416","description":"use-after-free","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:5c987eec95dbdeae087a2324fe6ef0e029c74d8ede63837eed8176aa263aa4fb · sha256:f273ee272a051b5a… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"Fix commit","tags":["patch"],"url":"https://github.com/zephyrproject-rtos/zephyr/commit/aaed8332a62b0490a2f3c2cbabe272f575068eaa"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5c987eec95dbdeae087a2324fe6ef0e029c74d8ede63837eed8176aa263aa4fb · sha256:f273ee272a051b5a… · /containers/cna/references/0

{"name":"GHSA-r74c-mr4m-7g9g","url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-r74c-mr4m-7g9g"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5c987eec95dbdeae087a2324fe6ef0e029c74d8ede63837eed8176aa263aa4fb · sha256:f273ee272a051b5a… · /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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