CVE-2018-5271

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-01-08 · updated 2026-06-17
Weakness: CWE-20

Description

In Malwarebytes Premium 3.3.1.2183, the driver file (FARFLT.SYS) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x9c40e008. NOTE: the vendor reported that they "have not been able to reproduce the issue on any Windows operating system version (32-bit or 64-bit).

Affected products

Malwarebytes: 3.3.1.2183

References

http://www.securityfocus.com/bid/102471
https://github.com/ZhiyuanWang-Chengdu-Qihoo360/Malwarebytes_POC/tree/master/0x9c40e008
http://www.securityfocus.com/bid/102471
https://github.com/ZhiyuanWang-Chengdu-Qihoo360/Malwarebytes_POC/tree/master/0x9c40e008

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