Vulnerability Details : CVE-2021-26235
FastStone Image Viewer <= 7.5 is affected by a user mode write access violation near NULL at 0x005bdfc9, triggered when a user opens or views a malformed CUR file that is mishandled by FSViewer.exe. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.
Vulnerability category: Denial of service
Products affected by CVE-2021-26235
- cpe:2.3:a:faststone:image_viewer:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26235
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26235
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-26235
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-26235
-
https://voidsec.com/advisories/cve-2021-26235-faststone-image-viewer-v-7-5-user-mode-write-access-violation/
CVE-2021-26235: FastStone Image Viewer v.Third Party Advisory
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