# FastStone Image Viewer vulnerabilities Source: https://junglewise.ai/threats/technologies/image-viewer Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/image-viewer.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 7 vulnerabilities in FastStone Image Viewer: 0 in the last 7 days and 5 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-116463, was published on 26 October 2026. 1 vulnerability in the last four weeks, down 75% on the four before (4). ## Counts - Last 7 days: 0 - Last 30 days: 1 - Last 90 days: 5 - All time: 7 (0 critical, 0 exploited in the wild) ## About FastStone Image Viewer FastStone image viewer application for viewing and managing digital images. ## Latest FastStone Image Viewer vulnerabilities - [CVE-2026-116463: FastStone Image Viewer out-of-bounds read in Box-Average Downsampler](https://junglewise.ai/threats/cve-2026-116463-a-vulnerability-was-identified-in-faststone-image-viewer-up-to-8) (medium, CVSS 6.3, published 26 Oct 2026) - [CVE-2026-101205: FastStone Image Viewer out-of-bounds read in PCX decoder](https://junglewise.ai/threats/cve-2026-101205-a-vulnerability-was-determined-in-faststone-image-viewer-up-to-8) (medium, CVSS 6.3, published 28 Sep 2026) - [CVE-2026-101204: FastStone Image Viewer out-of-bounds read in TGA handler](https://junglewise.ai/threats/cve-2026-101204-a-vulnerability-was-found-in-faststone-image-viewer-up-to-8-3) (medium, CVSS 6.3, published 28 Sep 2026) - [CVE-2026-101203: FastStone Image Viewer out-of-bounds write in 1bpp RLE decoder](https://junglewise.ai/threats/cve-2026-101203-a-vulnerability-has-been-found-in-faststone-image-viewer-up-to-8) (medium, CVSS 6.3, published 28 Sep 2026) - [CVE-2026-101202: FastStone Image Viewer out-of-bounds write in TGA handler](https://junglewise.ai/threats/cve-2026-101202-a-flaw-has-been-found-in-faststone-image-viewer-up-to-8-3-the) (medium, CVSS 6.3, published 28 Sep 2026) - [CVE-2026-30041: FastStone Image Viewer integer overflow in PSD parser](https://junglewise.ai/threats/cve-2026-30041-faststone-image-viewer-integer-overflow-in-psd-parser) (info, CVSS 7.8, published 26 Jun 2026) - [CVE-2026-30040: FastStone Image Viewer heap overflow in JP2 parser](https://junglewise.ai/threats/cve-2026-30040-faststone-image-viewer-heap-overflow-in-jp2-parser) (info, CVSS 8.8, published 26 Jun 2026) ## Most severe FastStone Image Viewer vulnerabilities - [CVE-2026-116463: FastStone Image Viewer out-of-bounds read in Box-Average Downsampler](https://junglewise.ai/threats/cve-2026-116463-a-vulnerability-was-identified-in-faststone-image-viewer-up-to-8) (medium, CVSS 6.3, published 26 Oct 2026) - [CVE-2026-101205: FastStone Image Viewer out-of-bounds read in PCX decoder](https://junglewise.ai/threats/cve-2026-101205-a-vulnerability-was-determined-in-faststone-image-viewer-up-to-8) (medium, CVSS 6.3, published 28 Sep 2026) - [CVE-2026-101204: FastStone Image Viewer out-of-bounds read in TGA handler](https://junglewise.ai/threats/cve-2026-101204-a-vulnerability-was-found-in-faststone-image-viewer-up-to-8-3) (medium, CVSS 6.3, published 28 Sep 2026) - [CVE-2026-101203: FastStone Image Viewer out-of-bounds write in 1bpp RLE decoder](https://junglewise.ai/threats/cve-2026-101203-a-vulnerability-has-been-found-in-faststone-image-viewer-up-to-8) (medium, CVSS 6.3, published 28 Sep 2026) - [CVE-2026-101202: FastStone Image Viewer out-of-bounds write in TGA handler](https://junglewise.ai/threats/cve-2026-101202-a-flaw-has-been-found-in-faststone-image-viewer-up-to-8-3-the) (medium, CVSS 6.3, published 28 Sep 2026) - [CVE-2026-30040: FastStone Image Viewer heap overflow in JP2 parser](https://junglewise.ai/threats/cve-2026-30040-faststone-image-viewer-heap-overflow-in-jp2-parser) (info, CVSS 8.8, published 26 Jun 2026) - [CVE-2026-30041: FastStone Image Viewer integer overflow in PSD parser](https://junglewise.ai/threats/cve-2026-30041-faststone-image-viewer-integer-overflow-in-psd-parser) (info, CVSS 7.8, published 26 Jun 2026) ## Vulnerabilities per week 1 vulnerability in the last four weeks, down 75% on the four before (4). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 4 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 1 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "FastStone Image Viewer vulnerabilities", https://junglewise.ai/threats/technologies/image-viewer, 9 November 2026.