CVE Explorer
CVE-2026-10634
Zephyr's native TCP stack iterates the global connection list in net_tcp_foreach() (subsys/net/ip/tcp.c) using the SYS_SLIST_FOR_EACH_CONTAINER_SAFE macro, which caches a pointer to the next list node. Prior to this fix the function released tcp_lock while invoking the per-connection callback and re-acquired it afterwards.
During that window a concurrent tcp_conn_release(), running on the dedicated TCP work-queue thread when a connection's reference count drops to zero (e.g. a remote peer closi
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/tcp.c"],"vendor":"zephyrproject","versions":[{"lessThan":"4.5.0","status":"affected","version":"2.5.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:4275e33cf93f39da9f89aa60a1ccad3c445effb6245d013324bad18cdc6b0be3 · sha256:c381eab0604f230b… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:4275e33cf93f39da9f89aa60a1ccad3c445effb6245d013324bad18cdc6b0be3 · sha256:c381eab0604f230b… · /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:v2:4275e33cf93f39da9f89aa60a1ccad3c445effb6245d013324bad18cdc6b0be3 · sha256:c381eab0604f230b… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"Fix commit","tags":["patch"],"url":"https://github.com/zephyrproject-rtos/zephyr/commit/cd85e0e890ab89815c4cbc0a8fbc03a3efa84dc2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:4275e33cf93f39da9f89aa60a1ccad3c445effb6245d013324bad18cdc6b0be3 · sha256:c381eab0604f230b… · /containers/cna/references/0
{"name":"GHSA-6c57-xfhw-j26x","url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-6c57-xfhw-j26x"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:4275e33cf93f39da9f89aa60a1ccad3c445effb6245d013324bad18cdc6b0be3 · sha256:c381eab0604f230b… · /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.