# CVE-2025-1055 — K7 Security Anti-Malware

> As of 2025-06-11, CVE-2025-1055 is a MEDIUM-severity vulnerability in K7 Security Anti-Malware, CVSS v3.1 5.6, EPSS 0.2% (12.8th percentile). Threadlinqs Intelligence links 3 tracked threat campaigns to CVE-2025-1055, most recently “Warlock Ransomware Attackers Hit Water and Telecom Operators via SharePoint ToolShell Exploitation (Longlegs / Storm-2603)”.

**Last updated:** 2025-06-11

## What is CVE-2025-1055?

A vulnerability in the K7RKScan.sys driver, part of the K7 Security Anti-Malware suite, allows a local low-privilege user to send crafted IOCTL requests to terminate a wide range of processes running with administrative or system-level privileges, with the exception of those inherently protected by the operating system. This flaw stems from missing access control in the driver's IOCTL handler, enabling unprivileged users to perform privileged actions in kernel space. Successful exploitation can lead to denial of service by disrupting critical services or privileged applications.

The record classifies CVE-2025-1055 under weakness class [CWE-862](https://cwe.mitre.org/data/definitions/862.html). 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. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 479 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 5.6 — MEDIUM (`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 12.8% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2025-06-10, last modified 2025-06-11

## Is CVE-2025-1055 being exploited?

Weaponised exploit code for CVE-2025-1055 is publicly available. 2 public proof-of-concept repositories are tracked for this identifier.

- [diego-tella/CVE-2025-1055-poc](https://github.com/diego-tella/CVE-2025-1055-poc) (github)
- [trickest/cve](https://github.com/trickest/cve/blob/main/2025/CVE-2025-1055.md) (trickest)

## Affected products and versions

- **K7 Security**: Anti-Malware

## How to fix CVE-2025-1055

No vendor patch reference has been recorded for CVE-2025-1055 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2025-1055

3 tracked threats in the Threadlinqs corpus reference CVE-2025-1055, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Warlock Ransomware Attackers Hit Water and Telecom Operators via SharePoint ToolShell Exploitation (Longlegs / Storm-2603)](https://intel.threadlinqs.com/threat/TL-2026-2833) — CRITICAL · 2026-10-01
- [DragonForce 'Backdoor.Turn' Abuses Microsoft Teams TURN Relays to Conceal Ransomware C2 (Go RAT, BYOVD, CVE-2023-52271 / CVE-2025-61155 / CVE-2025-1055)](https://intel.threadlinqs.com/threat/TL-2026-0819) — HIGH · 2026-06-16
- [DragonForce Ransomware Abuses Microsoft Teams TURN Relays to Hide Backdoor.Turn C2 Traffic](https://intel.threadlinqs.com/threat/TL-2026-2181) — CRITICAL · 2026-06-16

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-01. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [pentraze.com](https://pentraze.com/)
- [pentraze.com (vulnerability reports)](https://pentraze.com/vulnerability-reports/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-1055
Full detection coverage and IOCs for threats exploiting CVE-2025-1055 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp