Out-of-bounds write in FastStone Image Viewer
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
FastStone Image Viewer GIF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FastStone Image Viewer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of GIF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25145.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-9114
- 2026-10-03 Alias added: GHSA-vxc5-94ff-325x
References
Advisory 1
More FastStone Image Viewer vulnerabilities
- TI-2007-01864 Integer overflow in FastStone Image Viewer 2.9 allows context-dependent attackers to… CVSS 2.0HIGH 9.3
- TI-2022-17153 Unsafe Parsing of a PNG tRNS chunk in FastStone Image Viewer through 7.5 results in a stack buffer overflow. CVSS 3.1CRITICAL 9.8
- TI-2021-08098 FastStone Image Viewer <= 7.5 is affected by a user mode write access violation at… CVSS 3.1HIGH 7.8
- TI-2021-08097 FastStone Image Viewer v.<= 7.5 is affected by a Stack-based Buffer Overflow at… CVSS 3.1HIGH 7.8
- TI-2024-08463 Out-of-bounds write in FastStone Image Viewer CVSS 3.1HIGH 7.8
- TI-2024-08462 Out-of-bounds write in FastStone Image Viewer CVSS 3.1HIGH 7.8
Sources
- CVE-2024-9114 · CVE Program
- CVE-2024-9114 · NVD
- FIRST EPSS
- GHSA-vxc5-94ff-325x · GitHub Advisory Database · CC BY 4.0
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