CVE Explorer
CVE-2026-10639
In Zephyr's native IPv4 stack, icmpv4_handle_echo_request() in subsys/net/ip/icmpv4.c builds an echo-reply packet (reply), hands it to net_try_send_data(), and then, on success, calls net_stats_update_icmp_sent(net_pkt_iface(reply)). net_try_send_data() transfers ownership of reply to the TX path (net_if_try_queue_tx -> net_if_tx -> L2/driver send, or the asynchronous net_if_tx_thread), which can unref it to refcount 0 and return the struct net_pkt to its slab (net_pkt_unref -> k_mem_slab_free)
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://github.com/zephyrproject-rtos/zephyr","defaultStatus":"unaffected","packageName":"zephyr","product":"zephyr","programFiles":["subsys/net/ip/icmpv4.c"],"vendor":"zephyrproject","versions":[{"lessThan":"4.5.0","status":"affected","version":"1.14.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:dd43ce74dcb83a55ba25391344215aa43ef496695716f37c441fdd049ddfa23e · sha256:affd4d19741a58d7… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:dd43ce74dcb83a55ba25391344215aa43ef496695716f37c441fdd049ddfa23e · sha256:affd4d19741a58d7… · /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_v5cweurn:baitaphish:normalized-source-record:v2:dd43ce74dcb83a55ba25391344215aa43ef496695716f37c441fdd049ddfa23e · sha256:affd4d19741a58d7… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"Fix commit","tags":["patch"],"url":"https://github.com/zephyrproject-rtos/zephyr/commit/86e21665d4641f304dc3895bfb03b8f89db83291"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:dd43ce74dcb83a55ba25391344215aa43ef496695716f37c441fdd049ddfa23e · sha256:affd4d19741a58d7… · /containers/cna/references/0
{"name":"GHSA-qhrf-w466-qmpw","url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-qhrf-w466-qmpw"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:dd43ce74dcb83a55ba25391344215aa43ef496695716f37c441fdd049ddfa23e · sha256:affd4d19741a58d7… · /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.