CVE-2026-1679

⚠️ high

Summary

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.

CVSS Score

7.3

High

EPSS Score

0.1

Exploit Probability

Published Date

2026-03-28

First Seen: 2026-03-28

📊 Relative Risk Intelligence

This CVE is Moderate Risk - more severe than 55.5% of all 330,193 vulnerabilities in our database.

#147,095

Above average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: Apr 1, 2026

🔍 Exploitation Status

Poc

Proof-of-concept available

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

SSVC data provided by CISA

Last Modified 2026-03-31

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

CWE IDs (Weakness Types)

CWE-120

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
zephyrproject	zephyr	Affected	< 4.3.0

🔗 References 1

https://github.com/zephyrproject-rtos/zephyr/securit...

Exploit Patch Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-10641	⚠️ high	7.1	0.2	Zephyr's Bluetooth Classic Hands-Free Profile (HFP) Hands-Free role parser (subsys/bluetooth/host/classic/hfp_hf.c) cont...	2026-06-17
CVE-2026-10635	🔶 medium	6.3	0.1	On Xtensa targets with CONFIG_USERSPACE and CONFIG_XTENSA_MMU, the page-table code (arch/xtensa/core/ptables.c) maintain...	2026-06-16
CVE-2026-10640	🔶 medium	4.2	0.1	Zephyr's IPv6 Neighbor Discovery send paths (net_ipv6_send_na, net_ipv6_send_ns, net_ipv6_send_rs in subsys/net/ip/ipv6_...	2026-06-16
CVE-2026-0849	ℹ️ low	3.8	0.0	Malformed ATAES132A responses with an oversized length field overflow a 52-byte stack buffer in the Zephyr crypto driver...	2026-03-16
CVE-2026-4179	🔶 medium	6.1	0.0	Issues in stm32 USB device driver (drivers/usb/device/usb_dc_stm32.c) can lead to an infinite while loop.	2026-03-16
CVE-2026-1678	⛔ critical	9.4	0.1	dns_unpack_name() caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the cac...	2026-03-05

These CVEs affect the same products