VU#936962: Multiple file parsing vulnerabilities in FastStone Image Viewer 8.3.0.0

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 managing images, offering features like full‑screen viewing, batch processing, red‑eye removal, and a wide range of editing effects. It supports virtually all major image and RAW formats and includes conveniences like slideshows, comparison tools, scanner support, and screen capture. CVE-2026-30040 A critical heap-based buffer overflow vulnerability... Related CVEs: CVE-2026-30040, CVE-2026-30041.

Why it matters

CERT/CC notes often cover coordinated disclosures, multi-vendor exposure, infrastructure risk, or cases where remediation guidance is still developing.

Operator check

Review the CERT/CC Vulnerability Note and compare the affected vendor and product list against your inventory. Apply vendor fixes or compensating controls for Image Viewer 8.3.0.0 where available.

Sources