CVE record · CVE-2026-19935

Use-after-free of an L2CAP CoC channel object in the Zephyr Bluetooth host: RX work item is not cancelled on channel teardown

CVSS 7.5 HighEPSS 0.0018 · 7th percentile

Published by the CVE Program (CNA: zephyr) at 11 Oct 2026, 17:15 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
zephyrproject	zephyr Package name: zephyr https://github.com/zephyrproject-rtos/zephyr	affected 2.0.0 to before 4.5.0 semver Other versions: unaffected

Identifiers: CVE-2026-19935
CNA: zephyr
Weakness (CWE): CWE-416
Tags: zephyr
Memory corruption
Published: 11 Oct 2026
Updated: 4 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.5	High	3.1	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	CNA (zephyr)

CISA KEV Not listed.
EPSS 0.0018, the 7th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

11 Oct 2026, 17:15 UTC Confirmed by the CVE List
11 Oct 2026, 18:16 UTC Confirmed by NVD

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.