CVE-2026-1679
net: eswifi socket send payload length not bounded
The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space; oversized sends overflow eswifi->buf, corrupting kernel memory (CWE-120). Exploit requires local code that can call the socket send API; no remote attacker can reach it directly.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
net: eswifi socket send payload length not bounded
The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space; oversized sends overflow eswifi->buf, corrupting kernel memory (CWE-120). Exploit requires local code that can call the socket send API; no remote attacker can reach it directly.
- Record
CVE-2026-1679- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2026-16903
The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space; oversized sends overflow eswifi->buf, corrupting kernel memory (CWE-120). Exploit requires local code that can call the socket send API; no remote attacker can reach it directly.
- Record
EUVD-2026-16903- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H - Updated
- 2026-11-02
NVD
The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space; oversized sends overflow eswifi->buf, corrupting kernel memory (CWE-120). Exploit requires local code that can call the socket send API; no remote attacker can reach it directly.
- Record
CVE-2026-1679- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
OSV
net: eswifi socket send payload length not bounded
The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space; oversized sends overflow eswifi->buf, corrupting kernel memory (CWE-120). Exploit requires local code that can call the socket send API; no remote attacker can reach it directly.
- Record
CVE-2026-1679- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-1679 is a high vulnerability (CVSS 7.3) in Zephyrproject Zephyr, published March 27, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. No source names a fixed version.