CVE-2026-36355

State: Published
Severity: 7.7 High
Published: May 5, 2026
Updated: Jul 5, 2026
Reserved: Apr 6, 2026

Description

The rtl8192cd Wi-Fi kernel driver in the Realtek rtl819x Jungle SDK (all known versions through v3.4.14B) does not perform any access control checks on the write_mem (ioctl 0x89F5) and read_mem (ioctl 0x89F6) debug handlers, which are compiled into production builds via the unconditionally defined _IOCTL_DEBUG_CMD_ macro in 8192cd_cfg.h

Scores

CVSS	Score	Vector	Source
3.1	7.7 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	CISA-ADP

Weaknesses

CWE-782 Exposed IOCTL with Insufficient Access Control
CWE-787 Out-of-bounds Write
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/totekuh/CVE-2026-36355

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