VDB
DEBIAN-CVE-2025-9648
DEBIAN-CVE-2025-9648
PUBLISHED
CVSS 8.699999809265137 HIGH
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.
Risk Scores
CVSS 4.0
8.699999809265137
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | civetweb | 0, *, 1.16+dfsg |
| Debian:14 | civetweb | 1.16+dfsg, 1.16+dfsg, 0 |
| Debian:12 | civetweb | 1.16+dfsg, 0, 1.15+dfsg-4 |
| Debian:11 | civetweb | 1.16+dfsg, 1.16+dfsg, 1.16+dfsg |
Timeline
- Sep 29, 2025 CVE Published
- Apr 28, 2026 CVE Updated