net: shell: Improper input validation
Priority LOW 34CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- Low · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
At the most basic level, an invalid pointer can be input that crashes the device, but with more knowledge of the device’s memory layout, further exploitation is possible.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00518 44th percentileScored 2026-11-07
Fix Fixed zephyr (zephyrproject-rtos): v3.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| zephyrproject | zephyr | before v3.3; up to v2.7.4 | v3.3 | Patch available | CNA |
- zephyr Vendorzephyrproject Affected before v3.3; up to v2.7.4 Fixed in v3.3 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:* | up to 3.2.0 | Vulnerable | zephyrproject |
- cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:* Versions up to 3.2.0 Vulnerable ·zephyrproject
Remediation
- Fix · CNA zephyr (zephyrproject-rtos) Fixed in v3.3
Timeline
- 2026-10-02 Threatist record created from CVE-2023-0779
References
More zephyrproject Zephyr vulnerabilities
- TI-2026-04422 Out-of-bounds read/write in HTTP WebSocket upgrade via non-null-terminated Sec-WebSocket-Key CVSS 3.1CRITICAL 9.8
- TI-2026-01361 dns: memory‑safety issue in the DNS name parser CVSS 3.1CRITICAL 9.8
- TI-2026-09174 Unterminated URI buffer causes out-of-bounds read in LwM2M firmware pull (Package URI) CVSS 3.1CRITICAL 9.1
- TI-2026-09168 Stack buffer overflow in `net_ipaddr_parse()` IPv4 address-with-port parsing in `subsys/net/ip/utils.c` CVSS 3.1CRITICAL 9.8
- TI-2024-09625 net: lib: http_server: Buffer Under-read CVSS 3.1HIGH 8.6
- TI-2021-02863 Usb bluetooth device ACL read cb buffer overflow CVSS 3.1CRITICAL 9.6
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences