# Zephyrproject Zephyr vulnerabilities

Source: https://junglewise.ai/threats/technologies/zephyrproject-zephyr  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/zephyrproject-zephyr.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 8 vulnerabilities in Zephyrproject Zephyr: 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-11368, was published on 4 August 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 8 (1 critical, 0 exploited in the wild)

## About Zephyrproject Zephyr

Scalable real-time operating system for IoT and resource-constrained embedded devices.

## Latest Zephyrproject Zephyr vulnerabilities

- [CVE-2026-11368: The Bluetooth host ATT layer (subsys/bluetooth/host/att.c) associates each in-flight ATT TX buffer with its owning…](https://junglewise.ai/threats/cve-2026-11368-the-bluetooth-host-att-layer-subsys-bluetooth-host-att-c) (high, CVSS 7.1, published 4 Aug 2026)
- [CVE-2026-10849: The hawkBit device management client in subsys/mgmt/hawkbit accumulates the body of an HTTP response from the update…](https://junglewise.ai/threats/cve-2026-10849-the-hawkbit-device-management-client-in-subsys-mgmt-hawkbit) (high, CVSS 8.2, published 3 Aug 2026)
- [CVE-2026-2411: Zephyr's Bluetooth host declares a GATT characteristic as two consecutive attributes: a Characteristic Declaration…](https://junglewise.ai/threats/cve-2026-2411-zephyr-s-bluetooth-host-declares-a-gatt-characteristic-as-two) (medium, CVSS 6.5, published 1 Aug 2026)
- [CVE-2026-10773: The DHCPv4 client helper net_dhcpv4_msg_type_name() in subsys/net/lib/dhcpv4/dhcpv4.c indexes a static 8-element const…](https://junglewise.ai/threats/cve-2026-10773-the-dhcpv4-client-helper-net-dhcpv4-msg-type-name-in-subsys-net) (medium, CVSS 5.4, published 1 Aug 2026)
- [CVE-2026-1679: The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space…](https://junglewise.ai/threats/cve-2026-1679-the-eswifi-socket-offload-driver-copies-user-provided-payloads) (high, CVSS 7.3, published 28 Mar 2026)
- [CVE-2026-1678: dns_unpack_name() caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the…](https://junglewise.ai/threats/cve-2026-1678-dns-unpack-name-caches-the-buffer-tailroom-once-and-reuses-it) (critical, CVSS 9.4, published 5 Mar 2026)
- [CVE-2025-20747: In gnss service, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local…](https://junglewise.ai/threats/cve-2025-20747-in-gnss-service-there-is-a-possible-out-of-bounds-write-due-to-an) (medium, CVSS 6.7, published 4 Nov 2025)
- [CVE-2025-20746: In gnss service, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local…](https://junglewise.ai/threats/cve-2025-20746-in-gnss-service-there-is-a-possible-out-of-bounds-write-due-to-an) (medium, CVSS 6.7, published 4 Nov 2025)

## Most severe Zephyrproject Zephyr vulnerabilities

- [CVE-2026-1678: dns_unpack_name() caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the…](https://junglewise.ai/threats/cve-2026-1678-dns-unpack-name-caches-the-buffer-tailroom-once-and-reuses-it) (critical, CVSS 9.4, published 5 Mar 2026)
- [CVE-2026-10849: The hawkBit device management client in subsys/mgmt/hawkbit accumulates the body of an HTTP response from the update…](https://junglewise.ai/threats/cve-2026-10849-the-hawkbit-device-management-client-in-subsys-mgmt-hawkbit) (high, CVSS 8.2, published 3 Aug 2026)
- [CVE-2026-1679: The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space…](https://junglewise.ai/threats/cve-2026-1679-the-eswifi-socket-offload-driver-copies-user-provided-payloads) (high, CVSS 7.3, published 28 Mar 2026)
- [CVE-2026-11368: The Bluetooth host ATT layer (subsys/bluetooth/host/att.c) associates each in-flight ATT TX buffer with its owning…](https://junglewise.ai/threats/cve-2026-11368-the-bluetooth-host-att-layer-subsys-bluetooth-host-att-c) (high, CVSS 7.1, published 4 Aug 2026)
- [CVE-2025-20747: In gnss service, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local…](https://junglewise.ai/threats/cve-2025-20747-in-gnss-service-there-is-a-possible-out-of-bounds-write-due-to-an) (medium, CVSS 6.7, published 4 Nov 2025)
- [CVE-2025-20746: In gnss service, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local…](https://junglewise.ai/threats/cve-2025-20746-in-gnss-service-there-is-a-possible-out-of-bounds-write-due-to-an) (medium, CVSS 6.7, published 4 Nov 2025)
- [CVE-2026-2411: Zephyr's Bluetooth host declares a GATT characteristic as two consecutive attributes: a Characteristic Declaration…](https://junglewise.ai/threats/cve-2026-2411-zephyr-s-bluetooth-host-declares-a-gatt-characteristic-as-two) (medium, CVSS 6.5, published 1 Aug 2026)
- [CVE-2026-10773: The DHCPv4 client helper net_dhcpv4_msg_type_name() in subsys/net/lib/dhcpv4/dhcpv4.c indexes a static 8-element const…](https://junglewise.ai/threats/cve-2026-10773-the-dhcpv4-client-helper-net-dhcpv4-msg-type-name-in-subsys-net) (medium, CVSS 5.4, published 1 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Zephyrproject Zephyr vulnerabilities", https://junglewise.ai/threats/technologies/zephyrproject-zephyr, 9 November 2026.