Realtek rtl819x Jungle SDK up to 3.4.14B rtl8192cd Wi-Fi Kernel Driver 8192cd_cfg.h _IOCTL_DEBUG_CMD_ access control

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Realtek rtl819x Jungle SDK up to 3.4.14B. This impacts the function _IOCTL_DEBUG_CMD_ in the library 8192cd_cfg.h of the component rtl8192cd Wi-Fi Kernel Driver. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2026-36355. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Realtek rtl819x Jungle SDK up to 3.4.14B. Affected by this issue is the function _IOCTL_DEBUG_CMD_ in the library 8192cd_cfg.h of the component rtl8192cd Wi-Fi Kernel Driver. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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

This vulnerability is handled as CVE-2026-36355 since 04/06/2026. The exploitation is known to be easy. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (52580). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Exploit-DB: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/06/2026 CVE reserved
05/05/2026 +29 days Advisory disclosed
05/05/2026 +0 days VulDB entry created
05/28/2026 +23 days VulDB entry last update

Sourcesinfo

Status: Not defined

CVE: CVE-2026-36355 (🔒)
GCVE (CVE): GCVE-0-2026-36355
GCVE (VulDB): GCVE-100-361172
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/05/2026 18:53
Updated: 05/28/2026 02:27
Changes: 05/05/2026 18:53 (54), 05/28/2026 02:27 (13)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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