Buffer Overflow in USB DFU requested length
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| zephyrproject | zephyr | 1.14.1 and later; 2.1.0 and later | — | No fix listed | CNA |
- zephyr Vendorzephyrproject Affected 1.14.1 and later; 2.1.0 and later Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:* | before 1.14.2; 2.0.0 – 2.1.0 | Vulnerable | zephyrproject |
- cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:* Versions before 1.14.2; 2.0.0 – 2.1.0 Vulnerable ·zephyrproject
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
zephyrproject-rtos zephyr unspecified
11 records Highest priority Priority MEDIUM 1 MEDIUM, 10 LOW
Other records, highest priority first
- TI-2020-08089 UpdateHub Module Copies a Variable-Size Hash String Into a Fixed-Size ArrayPriority MEDIUM 47
- TI-2020-08117 UpdateHub Might Dereference An Uninitialized PointerPriority LOW 38
- TI-2020-08092 ARC Platform Uses Signed Integer Comparison When Validating Syscall NumbersPriority LOW 35
Timeline
- 2026-10-02 Threatist record created from CVE-2020-10019
- 2026-10-03 Alias added: GHSA-qv66-5g67-qh59
References
Patch 3
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
- CVE-2020-10019 · CVE Program
- CVE-2020-10019 · NVD
- FIRST EPSS
- GHSA-qv66-5g67-qh59 · GitHub Advisory Database · CC BY 4.0
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