DEBIAN-CVE-2025-9648

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Source
https://security-tracker.debian.org/tracker/CVE-2025-9648
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9648.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-9648
Upstream
Published
2025-09-29T12:15:49.440Z
Modified
2025-11-20T10:18:28.929184Z
Severity
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
[none]
Details

A vulnerability in the CivetWeb library's function mghandleform_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.

References

Affected packages

Debian:11 / civetweb

Package

Name
civetweb
Purl
pkg:deb/debian/civetweb?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.13+dfsg-5
1.15+dfsg-1
1.15+dfsg-2
1.15+dfsg-3
1.15+dfsg-4
1.16+dfsg-1
1.16+dfsg-2
1.16+dfsg-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9648.json"

Debian:12 / civetweb

Package

Name
civetweb
Purl
pkg:deb/debian/civetweb?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.15+dfsg-4
1.16+dfsg-1
1.16+dfsg-2
1.16+dfsg-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9648.json"

Debian:13 / civetweb

Package

Name
civetweb
Purl
pkg:deb/debian/civetweb?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.16+dfsg-2
1.16+dfsg-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9648.json"

Debian:14 / civetweb

Package

Name
civetweb
Purl
pkg:deb/debian/civetweb?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.16+dfsg-2
1.16+dfsg-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9648.json"