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9.8 — CRITICAL

FBI warns Gunra ransomware targets critical sectors and governments

📅 11 August 2026 at 11:33 UTC📰 Cyber InsiderView original source ↗
FBI warns Gunra ransomware targets critical sectors and governments

US authorities are warning organizations about Gunra, an emerging ransomware operation that has attacked victims worldwide, stolen as much as tens of terabytes of data in individual incidents, and opened ransom negotiations at amounts exceeding tens of millions of dollars. The group targets organizations across healthcare and finance, government, manufacturing, transportation, utilities, and retail. The … The post FBI warns Gunra ransomware targets critical sectors and governments appeared first on CyberInsider.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

Gunra ransomware targets organizations across multiple sectors, including healthcare and finance, government, and others, with attacks resulting in tens of terabytes of stolen data and ransom demands exceeding tens of millions of dollars.

⚙️Technical Details
CVEs
CVE-2024-55591CVE-2025-24472
Affected Systems
Fortinet FortiOSFortinet FortiProxy
Attack Vectors
NETWORK (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
💥Impact Assessment
Severity: CRITICAL
Who Is at Risk
Organizations across healthcare, finance, government, manufacturing, transportation, utilities, and retail sectors
🛡️Recommended Actions
1Immediately patch known exploited vulnerabilities in exposed VPN and remote-access systems
2Eliminate default credentials and segment networks
3Maintain tested offline and immutable backups that are isolated from production infrastructure
📦Affected Products
Fortinet FortiosFortinet FortiproxyFortinet FortiOSFortinet FortiProxy
🔐NVD Verified DataVERIFIED
CVE-2024-55591 ↗CVSS 9.8 — CRITICAL
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-288
Affected Products (CPE)
Fortinet FortiosFortinet Fortiproxy
CVE-2025-24472 ↗CVSS 8.1 — HIGH
Attack Vector
NETWORK
Complexity
HIGH
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-288
Affected Products (CPE)
Fortinet FortiosFortinet Fortiproxy

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