CVE-2025-11234

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Source
https://cve.org/CVERecord?id=CVE-2025-11234
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-11234.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-11234
Downstream
AZL (2)
CLSA (2)
DEBIAN (1)
OESA (6)
openSUSE (2)
RHSA (9)
RLSA (3)
SUSE (10)
UBUNTU (1)
Related
ALSA (3)
openSUSE (2)
SUSE (10)
Published
2025-10-03T10:30:34Z
Modified
2026-10-22T10:34:54Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Qemu-kvm: vnc websocket handshake use-after-free
Details

A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-416"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/11xxx/CVE-2025-11234.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "18:10.0.0-14.el10_1.5"
                        },
                        {
                            "fixed": "8100020251120003312.489197e6"
                        },
                        {
                            "fixed": "8100020251202222937.489197e6"
                        },
                        {
                            "fixed": "8040020260916092751.522a0ee4"
                        },
                        {
                            "fixed": "8040020260916092751.522a0ee4"
                        },
                        {
                            "fixed": "8080020260910092120.63b34585"
                        },
                        {
                            "fixed": "8080020260910092120.63b34585"
                        },
                        {
                            "fixed": "17:10.1.0-17.el9_8"
                        },
                        {
                            "fixed": "17:6.2.0-11.el9_0.10"
                        },
                        {
                            "fixed": "17:7.2.0-14.el9_2.24"
                        },
                        {
                            "fixed": "17:8.2.0-11.el9_4.18"
                        },
                        {
                            "fixed": "17:8.2.0-11.el9_4.19"
                        },
                        {
                            "fixed": "412.86.202608241157-0"
                        },
                        {
                            "fixed": "416.94.202601071926-0"
                        },
                        {
                            "fixed": "417.94.202601120213-0"
                        },
                        {
                            "fixed": "418.94.202601071817-0"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "InverseAffectedRanges"
                }
            ]
        }
    ]
}
References

Affected packages

Git / gitlab.com/qemu-project/qemu

Affected ranges

Type
GIT
Repo
https://gitlab.com/qemu-project/qemu
Events
Introduced
bfc766d38e1fae5767d43845c15c79ac8fa6d6af
Fixed
ccaea6b2656ec6eab966585f7b16438208f98de7
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "2.6.0"
                },
                {
                    "fixed": "10.1.2"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        }
    ]
}

Affected versions

v10.*
v10.0.0
v10.0.0-rc0
v10.0.0-rc1
v10.0.0-rc2
v10.0.0-rc3
v10.0.0-rc4
v10.1.0
v10.1.0-rc0
v10.1.0-rc1
v10.1.0-rc2
v10.1.0-rc3
v10.1.0-rc4
v10.1.1
v2.*
v2.10.0
v2.10.0-rc0
v2.10.0-rc1
v2.10.0-rc2
v2.10.0-rc3
v2.10.0-rc4
v2.11.0
v2.11.0-rc0
v2.11.0-rc1
v2.11.0-rc2
v2.11.0-rc3
v2.11.0-rc4
v2.11.0-rc5
v2.12.0
v2.12.0-rc0
v2.12.0-rc1
v2.12.0-rc2
v2.12.0-rc3
v2.12.0-rc4
v2.6.0
v2.7.0
v2.7.0-rc0
v2.7.0-rc1
v2.7.0-rc2
v2.7.0-rc3
v2.7.0-rc4
v2.7.0-rc5
v2.8.0
v2.8.0-rc0
v2.8.0-rc1
v2.8.0-rc2
v2.8.0-rc3
v2.8.0-rc4
v2.9.0
v2.9.0-rc0
v2.9.0-rc1
v2.9.0-rc2
v2.9.0-rc3
v2.9.0-rc4
v2.9.0-rc5
v3.*
v3.0.0
v3.0.0-rc0
v3.0.0-rc1
v3.0.0-rc2
v3.0.0-rc3
v3.0.0-rc4
v3.1.0
v3.1.0-rc0
v3.1.0-rc1
v3.1.0-rc2
v3.1.0-rc3
v3.1.0-rc4
v3.1.0-rc5
v4.*
v4.0.0
v4.0.0-rc0
v4.0.0-rc1
v4.0.0-rc2
v4.0.0-rc3
v4.0.0-rc4
v4.1.0
v4.1.0-rc0
v4.1.0-rc1
v4.1.0-rc2
v4.1.0-rc3
v4.1.0-rc4
v4.1.0-rc5
v4.2.0
v4.2.0-rc0
v4.2.0-rc1
v4.2.0-rc2
v4.2.0-rc3
v4.2.0-rc4
v4.2.0-rc5
v5.*
v5.0.0
v5.0.0-rc0
v5.0.0-rc1
v5.0.0-rc2
v5.0.0-rc3
v5.0.0-rc4
v5.1.0
v5.1.0-rc0
v5.1.0-rc1
v5.1.0-rc2
v5.1.0-rc3
v5.2.0
v5.2.0-rc0
v5.2.0-rc1
v5.2.0-rc2
v5.2.0-rc3
v5.2.0-rc4
v6.*
v6.0.0
v6.0.0-rc0
v6.0.0-rc1
v6.0.0-rc2
v6.0.0-rc3
v6.0.0-rc4
v6.0.0-rc5
v6.1.0
v6.1.0-rc0
v6.1.0-rc1
v6.1.0-rc2
v6.1.0-rc3
v6.1.0-rc4
v6.2.0
v6.2.0-rc0
v6.2.0-rc1
v6.2.0-rc3
v6.2.0-rc4
v7.*
v7.0.0
v7.0.0-rc0
v7.0.0-rc1
v7.0.0-rc2
v7.0.0-rc3
v7.0.0-rc4
v7.1.0
v7.1.0-rc0
v7.1.0-rc1
v7.1.0-rc2
v7.1.0-rc3
v7.1.0-rc4
v7.2.0
v7.2.0-rc0
v7.2.0-rc1
v7.2.0-rc2
v7.2.0-rc3
v7.2.0-rc4
v8.*
v8.0.0
v8.0.0-rc0
v8.0.0-rc1
v8.0.0-rc2
v8.0.0-rc3
v8.0.0-rc4
v8.1.0
v8.1.0-rc0
v8.1.0-rc1
v8.1.0-rc2
v8.1.0-rc3
v8.1.0-rc4
v8.2.0
v8.2.0-rc0
v8.2.0-rc1
v8.2.0-rc2
v8.2.0-rc3
v8.2.0-rc4
v9.*
v9.0.0
v9.0.0-rc0
v9.0.0-rc1
v9.0.0-rc2
v9.0.0-rc3
v9.0.0-rc4
v9.1.0
v9.1.0-rc0
v9.1.0-rc1
v9.1.0-rc2
v9.1.0-rc3
v9.1.0-rc4
v9.2.0
v9.2.0-rc0
v9.2.0-rc1
v9.2.0-rc2
v9.2.0-rc3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-11234.json"