Vulnerability in Sophos Hitmanpro.alert
CVE-2018-3971
An exploitable arbitrary write vulnerability exists in the 0x2222CC IOCTL handler functionality of Sophos HitmanPro.Alert 3.7.6.744. A specially crafted IRP request can cause the driver to write data under controlled by an attacker address, resulting in memory corruption. An attacker can send IRP request to trigger this vulnerability.
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: 0.005 (43.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Sophos Hitmanpro.alert — versions 3.7.6.744
- Talos Sophos — versions Sophos HitmanPro.Alert - hmpalert.sys 3.7.6.744 - Windows 7 x86
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/105743 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- www.talosintelligence.com/vulnerability_reports/TALOS-2018-0636 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-3971?
- CVE-2018-3971 is a high-severity vulnerability in Sophos Hitmanpro.alert, classified under Write-what-where Condition. CVSS score: 7.8/10. Published 2018-10-25.
- How severe is CVE-2018-3971?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2018-3971 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.