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7.8
CVSSv3

CVE-2021-26236

Published: 18/03/2021 Updated: 24/03/2021
CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
VMScore: 605
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
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Vulnerability Summary

FastStone Image Viewer v.<= 7.5 is affected by a Stack-based Buffer Overflow at 0x005BDF49, affecting the CUR file parsing functionality (BITMAPINFOHEADER Structure, 'BitCount' file format field), that will end up corrupting the Structure Exception Handler (SEH). Attackers could exploit this issue to achieve code execution when a user opens or views a malformed/specially crafted CUR file.

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faststone image viewer

References

CWE-787https://voidsec.com/advisories/cve-2021-26236-faststone-image-viewer-v-7-5-stack-based-buffer-overflow/https://voidsec.com/fuzzing-faststone-image-viewer-cve-2021-26236https://www.exploit-db.com/exploits/49660https://nvd.nist.gov
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-34377CVE-2024-20859CVE-2023-49606injectarbitrary CVE-2024-33788CVE-2024-30973IDORCVE-2024-33907
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