User Mode Write Access Violation in FastStone Image Viewer by FastStone
CVE-2021-26233

7.8HIGH

Key Information:

Vendor

Faststone

Status
Image Viewer
Vendor
CVE Published:
18 March 2021

What is CVE-2021-26233?

FastStone Image Viewer versions up to 7.5 are susceptible to a user mode write access violation, which occurs when a malformed CUR file is opened. This issue is triggered by FSViewer.exe mishandling specific data, leading to potential denial of service and, under certain conditions, the possibility for code execution. Users are advised to be cautious when handling CUR files and to update to a patched version of the software.

References

https://voidsec.com/advisories/cve-2021-26233-faststone-i...
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.