CVE-2023-52271
As of 2025-06-03, CVE-2023-52271 is a MEDIUM-severity vulnerability, CVSS v3.1 6.5, EPSS 0.3% (21.5th percentile). Threadlinqs Intelligence links 3 tracked threat campaigns to CVE-2023-52271, most recently “SilverFox APT Deploys Advanced ValleyRAT Campaign Against Japanese Manufacturer via DLL Sideloading and BYOVD”.
Last updated: 2025-06-03
What is CVE-2023-52271?
The wsftprm.sys kernel driver 2.0.0.0 in Topaz Antifraud allows low-privileged attackers to kill any (Protected Process Light) process via an IOCTL (which will be named at a later time).
Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on availability. The identifier was first published 986 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 6.5 — MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H - EPSS (FIRST)
- 0.3% probability of exploitation in the next 30 days, higher than 21.5% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 6.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2024-01-08, last modified 2025-06-03
Is CVE-2023-52271 being exploited?
Weaponised exploit code for CVE-2023-52271 is publicly available. 2 public proof-of-concept repositories are tracked for this identifier.
- victoni/BYOVD-CVE-2023-52271-POC (github)
- trickest/cve (trickest)
Affected products and versions
No affected-product or package list has been recorded for CVE-2023-52271 in the tracked sources. The vendor advisory and the references below are the authoritative statement of what is affected.
How to fix CVE-2023-52271
No vendor patch reference has been recorded for CVE-2023-52271 in the tracked sources. Follow the references below for a fix, and treat any affected deployment as exposed until the vendor states otherwise.
Threat activity tracking CVE-2023-52271
3 tracked threats in the Threadlinqs corpus reference CVE-2023-52271, either in the campaign’s CVE list or as an indicator on the campaign record.
- SilverFox APT Deploys Advanced ValleyRAT Campaign Against Japanese Manufacturer via DLL Sideloading and BYOVD — HIGH · 2026-07-31
- DragonForce 'Backdoor.Turn' Abuses Microsoft Teams TURN Relays to Conceal Ransomware C2 (Go RAT, BYOVD, CVE-2023-52271 / CVE-2025-61155 / CVE-2025-1055) — HIGH · 2026-06-16
- DragonForce Ransomware Abuses Microsoft Teams TURN Relays to Hide Backdoor.Turn C2 Traffic — CRITICAL · 2026-06-16
Sources
Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on .
Other references
← all vulnerabilities · Markdown version · Threadlinqs Intelligence