CVE-2026-1681
Issuing an ICMP ping via the 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…
Published May 12, 2026 · corrected/updated Oct 15, 2026 · zephyrproject zephyr · evidence confidence high
Issuing an ICMP ping via the 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.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-1681 is a medium public vulnerability record for zephyrproject zephyr. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether zephyrproject zephyr is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: zephyrproject/zephyr. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 6.1, EPSS 0.1%. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-674, CWE-787. Sources contributing to this record: cve_org, epss, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 12, 2026 · NIST NVD
Detected
Issuing an ICMP ping via the 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
Oct 15, 2026 · NIST NVD
Updated
Issuing an ICMP ping via the 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
Affected
- cpe zephyrproject/zephyrversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-1681
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-1681
30-day exploitation probability 0.1%
first.org - NIST NVDVulnerability recordCVE-2026-1681
Issuing an ICMP ping via the 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 result
nvd.nist.gov