Vulnerability Snapshot
CVE-2026-30040 is rated CRITICAL — exploitation is trivial or already observed in the wild and impact is severe. Patch immediately, not on the next maintenance window.
Affected technology: edge.
Executive Summary
Overview Two vulnerabilities have been identified in FastStone Image Viewer 8.3 that may allow remote code execution or control-flow corruption when processing specially crafted image files. The affected components include the JPEG 2000 (JP2) parser and the PSD file parser. An attacker can exploit these vulnerabilities by causing the application to automatically or interactively process malicious image files. Description FastStone Image Viewer is a software tool for browsing, editing, and managi
Source
How Vulnios Detects This
Vulnios scans for this vulnerability using Trivy and Grype for SBOM-based CVE matching and Vulnios CVE feed continuous monitoring against your asset inventory. Run a scan against your environment to see whether you are exposed; findings are linked back to the original CVE record so triage starts with the patch path already known.
AI Security Advisor
Powered by Gemini
Get AI-powered security recommendations tailored to this specific threat — including risk assessment, detection guidance, MITRE ATT&CK mapping, and actionable remediation steps.
Affected Products
Sources
Related Threat Alerts
- Fortinet Responds to FortiBleed Campaign
- FortiBleed: 86,000 Fortinet Device Credentials Compromised
- CISA Warns Fortinet Customers as FortiBleed Hits 86,644 FortiGate Devices
- CISA warns Fortinet users to secure devices after FortiBleed leak
- CISA Urges Hardening Fortinet Devices After Reports of Credential Exposure
- FortiBleed leak exposes Fortinet VPN credentials for 73,000 devices.
Frequently Asked Questions
What is CVE-2026-30040?
CVE-2026-30040 is a critical-severity vulnerability tracked under the Common Vulnerabilities and Exposures program. Overview Two vulnerabilities have been identified in FastStone Image Viewer 8.3 that may allow remote code execution or control-flow corruption when processing specially crafted image files. The affec
Am I affected?
Check whether your environment runs edge. If you operate any of those, treat yourself as in scope until you have evidence otherwise. A Vulnios scan will identify the exact assets carrying the affected version.
How urgent is the response?
Critical: do not wait for your normal patch cycle. Verify exposure today, apply the vendor patch immediately, and add detection rules for any post-exploit indicators.
How do I remediate?
Apply the vendor patch listed in the upstream advisory linked under Sources. If the patch is not yet available, follow the vendor-supplied workaround (often a config flag or feature disable) and add detections for the published exploit pattern in your SIEM. Re-scan after the patch lands to confirm the finding clears.
Where can I track exploitation activity?
Watch CISA's Known Exploited Vulnerabilities catalog for CVE-2026-30040. Cross-reference with public exploit databases and your own SIEM/IDS for indicator-of-compromise patterns. Vulnios tracks KEV status automatically and surfaces it on the asset findings view.
How does Vulnios help with this?
Vulnios continuously cross-references your asset inventory against the live CVE feed (NVD, vendor advisories, CISA KEV, and curated OSINT). When a new CVE matches your environment, you get a prioritized finding with the severity, KEV status, exploit-prediction (EPSS), and a direct path to the vendor patch. You can start a free scan from the homepage.
Protect Your Organization
Monitor CVEs, scan for vulnerabilities, and get real-time threat alerts — all in one platform.
Get instant alerts on Telegram
Join our public channel for real-time critical CVE alerts.
Follow @vulnios