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Total 4 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2025-9648 1 Civetweb Project 1 Civetweb 2025-09-30 5.3 Medium
A vulnerability in the CivetWeb library's function mg_handle_form_request allows remote attackers to trigger a denial of service (DoS) condition. By sending a specially crafted HTTP POST request containing a null byte in the payload, the server enters an infinite loop during form data parsing. Multiple malicious requests will result in complete CPU exhaustion and render the service unresponsive to further requests. This issue was fixed in commit 782e189. This issue affects only the library, standalone executable pre-built by vendor is not affected.
CVE-2025-55763 1 Civetweb Project 1 Civetweb 2025-09-09 7.5 High
Buffer Overflow in the URI parser of CivetWeb 1.14 through 1.16 (latest) allows a remote attacker to achieve remote code execution via a crafted HTTP request. This vulnerability is triggered during request processing and may allow an attacker to corrupt heap memory, potentially leading to denial of service or arbitrary code execution.
CVE-2020-27304 3 Civetweb Project, Redhat, Siemens 3 Civetweb, Advanced Cluster Security, Sinec Infrastructure Network Services 2024-11-21 9.8 Critical
The CivetWeb web library does not validate uploaded filepaths when running on an OS other than Windows, when using the built-in HTTP form-based file upload mechanism, via the mg_handle_form_request API. Web applications that use the file upload form handler, and use parts of the user-controlled filename in the output path, are susceptible to directory traversal
CVE-2018-12684 1 Civetweb Project 1 Civetweb 2024-11-21 N/A
Out-of-bounds Read in the send_ssi_file function in civetweb.c in CivetWeb through 1.10 allows attackers to cause a Denial of Service or Information Disclosure via a crafted SSI file.