CVE-2018-3971
An exploitable arbitrary write vulnerability exists in the 0x2222CC IOCTL handler functionality of Sophos HitmanPro.Alert 3.7.6.744.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.54% probability · 45th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-123
- Affected
- sophos/hitmanpro.alert
- Source
- talos-cna@cisco.com
EPSS 0.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/105743Broken Link, Third Party Advisory, VDB Entry
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0636Exploit, Third Party Advisory
- http://www.securityfocus.com/bid/105743Broken Link, Third Party Advisory, VDB Entry
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0636Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.