Back to Database
Status published
High
CVE-2021-23180
A flaw was found in htmldoc in v1.9.12 and before....
Vulnerability Description
A flaw was found in htmldoc in v1.9.12 and before. Null pointer dereference in file_extension(),in file.c may lead to execute arbitrary code and denial of service.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-23180
Credits & Attribution
No credits recorded in the NVD database.
References
More from n/a
View All →CVE-2025-9910
Versions of the package jsondiffpatch before 0.7.2 are vulnerable to...
Low
2.3
CVE-2025-9802
RemoteClinic profile.php sql injection
Medium
5.1
CVE-2025-9799
Langfuse Webhook promptRouter.ts promptChangeEventSourcing server-side request forgery
Low
2.3
CVE-2025-9775
RemoteClinic edit-my-profile.php unrestricted upload
Medium
6.9
CVE-2025-9774
RemoteClinic edit-patient.php information disclosure
Medium
5.3
Affected Vendor
Affected Software
htmldoc
Vulnerable Versions:
Fixed in htmldoc v1.9.12 and above.
Timeline
Official Publish:
March 2nd, 2022
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H