USN-8749-1

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Source
https://ubuntu.com/security/notices/USN-8749-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8749-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8749-1
Upstream
Related
Published
2026-09-14T01:27:29Z
Modified
2026-09-14T11:27:23Z
Summary
civetweb vulnerabilities
Details

It was discovered that CivetWeb did not correctly handle parsing certain URIs. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2025-55763)

It was discovered that CivetWeb did not correctly handle parsing certain HTTP requests. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2025-9648)

References

Affected packages

Ubuntu:Pro:22.04:LTS / civetweb

Package

Name
civetweb
Purl
pkg:deb/ubuntu/civetweb?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.15+dfsg-3ubuntu0.1~esm1

Affected versions

1.*
1.13+dfsg-5
1.15+dfsg-1
1.15+dfsg-3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "civetweb",
            "binary_version": "1.15+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "libcivetweb1",
            "binary_version": "1.15+dfsg-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-9648",
            "severity": [
                {
                    "score": "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",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2025-55763",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8749-1.json"

Ubuntu:24.04:LTS / civetweb

Package

Name
civetweb
Purl
pkg:deb/ubuntu/civetweb?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.16+dfsg-1ubuntu0.1

Affected versions

1.*
1.16+dfsg-1
1.16+dfsg-1build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "civetweb",
            "binary_version": "1.16+dfsg-1ubuntu0.1"
        },
        {
            "binary_name": "libcivetweb1",
            "binary_version": "1.16+dfsg-1ubuntu0.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-9648",
            "severity": [
                {
                    "score": "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",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2025-55763",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8749-1.json"

Ubuntu:26.04:LTS / civetweb

Package

Name
civetweb
Purl
pkg:deb/ubuntu/civetweb?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.16+dfsg-3ubuntu0.1

Affected versions

1.*
1.16+dfsg-2
1.16+dfsg-3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "civetweb",
            "binary_version": "1.16+dfsg-3ubuntu0.1"
        },
        {
            "binary_name": "libcivetweb1",
            "binary_version": "1.16+dfsg-3ubuntu0.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-9648",
            "severity": [
                {
                    "score": "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",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:26.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8749-1.json"