CVE Explorer
CVE-2025-9648
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, sta
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"CivetWeb","vendor":"CivetWeb","versions":[{"lessThan":"1.08","status":"unaffected","version":"0","versionType":"semver"},{"lessThan":"1.10","status":"unknown","version":"1.08","versionType":"semver"},{"lessThanOrEqual":"1.16","status":"affected","version":"1.10","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:f5f67e5c2e6af18295d9f4d438093008d979fa7d6d92500e917539bd87928b53 · sha256:6a87d053b9a52d57… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NON…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:f5f67e5c2e6af18295d9f4d438093008d979fa7d6d92500e917539bd87928b53 · sha256:6a87d053b9a52d57… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-158","description":"CWE-158 Improper Neutralization of Null Byte or NUL Character","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:f5f67e5c2e6af18295d9f4d438093008d979fa7d6d92500e917539bd87928b53 · sha256:6a87d053b9a52d57… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"tags":["third-party-advisory"],"url":"https://cert.pl/en/posts/2025/09/CVE-2025-9648"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f5f67e5c2e6af18295d9f4d438093008d979fa7d6d92500e917539bd87928b53 · sha256:6a87d053b9a52d57… · /containers/cna/references/0
{"tags":["product"],"url":"https://github.com/civetweb/civetweb"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f5f67e5c2e6af18295d9f4d438093008d979fa7d6d92500e917539bd87928b53 · sha256:6a87d053b9a52d57… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/civetweb/civetweb/commit/782e18903515f43bafbf2e668994e82bdfa51133"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f5f67e5c2e6af18295d9f4d438093008d979fa7d6d92500e917539bd87928b53 · sha256:6a87d053b9a52d57… · /containers/cna/references/3
{"tags":["issue-tracking"],"url":"https://github.com/civetweb/civetweb/issues/1348"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f5f67e5c2e6af18295d9f4d438093008d979fa7d6d92500e917539bd87928b53 · sha256:6a87d053b9a52d57… · /containers/cna/references/2
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.