Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L N R U N L H 6.1 .0014 3.3 —
AFFECTED Product Versions Fixed Zephyr unspecified —
TIMELINE Jan 30 Reserved by zephyr May 12 Published (CNA: zephyr) Oct 15 EXPLOIT PUBLISHED — CVE-2026-1681 (zephyrproject-rtos Zephyr). Public exploit reference added.
Issuing an ICMP ping via the `net ping` shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are processed inline before the current frame returns. The nested input-path frames exceed the work-queue stack and trigger a stack overflow.
| Date | Event | Detail |
|---|---|---|
| January 30, 2026 | Reserved | Reserved by zephyr |
| May 12, 2026 | Published | Published (CNA: zephyr) |
| October 15, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-1681 (zephyrproject-rtos Zephyr). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| zephyrproject-rtos | Zephyr | — | — | — |
Authoritative record: CVE-2026-1681 at cve.org
Vendors: zephyrproject-rtos
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-1681 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
