Improper input validation in Malwarebytes
CVE-2018-5270
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 0x9c40e010. 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).
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (33.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Malwarebytes — versions 3.3.1.2183
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/ZhiyuanWang-Chengdu-Qihoo360/Malwarebytes_POC/tree/master/0x9c40e010 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-5270?
- CVE-2018-5270 is a high-severity vulnerability in Malwarebytes, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2018-01-08.
- How severe is CVE-2018-5270?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2018-5270 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.