Buffer overflow in Faststone Image Viewer
CVE-2026-101202
A flaw has been found in FastStone Image Viewer up to 8.3. The affected element is an unknown function of the component TGA Image Handler. Executing a manipulation can lead to out-of-bounds write. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Faststone Image Viewer — versions 8.0, 8.1, 8.2
Weakness classification (CWE)
References
- vuldb.com/vuln/411011 (vdb-entry)
- vuldb.com/vuln/411011/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-101202 (third-party-advisory)
- vuldb.com/submit/907574 (third-party-advisory)
Frequently asked questions
- What is CVE-2026-101202?
- CVE-2026-101202 is a medium-severity vulnerability in Faststone Image Viewer, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2026-09-28.
- How severe is CVE-2026-101202?
- Medium severity. CVSS v3 base score is 6.3 out of 10.