UBUNTU-CVE-2026-34352

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Source
https://ubuntu.com/security/CVE-2026-34352
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34352.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-34352
Upstream
  • CVE-2026-34352
Published
2026-03-26T23:16:00Z
Modified
2026-05-20T16:25:32.880556646Z
Severity
  • 8.5 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L CVSS Calculator
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen contents, or cause an application crash, because of incorrect permissions.

References

Affected packages

Ubuntu:18.04:LTS
tigervnc

Package

Name
tigervnc
Purl
pkg:deb/ubuntu/tigervnc?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.7.0+dfsg-7ubuntu1
1.7.0+dfsg-8ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tigervnc-common",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-scraping-server",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-standalone-server",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-viewer",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-xorg-extension",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34352.json"
Ubuntu:22.04:LTS
tigervnc

Package

Name
tigervnc
Purl
pkg:deb/ubuntu/tigervnc?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.11.0+dfsg-2ubuntu1
1.12.0+dfsg-2
1.12.0+dfsg-3
1.12.0+dfsg-4
1.12.0+dfsg-4ubuntu0.22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tigervnc-common",
            "binary_version": "1.12.0+dfsg-4ubuntu0.22.04.1"
        },
        {
            "binary_name": "tigervnc-scraping-server",
            "binary_version": "1.12.0+dfsg-4ubuntu0.22.04.1"
        },
        {
            "binary_name": "tigervnc-standalone-server",
            "binary_version": "1.12.0+dfsg-4ubuntu0.22.04.1"
        },
        {
            "binary_name": "tigervnc-tools",
            "binary_version": "1.12.0+dfsg-4ubuntu0.22.04.1"
        },
        {
            "binary_name": "tigervnc-viewer",
            "binary_version": "1.12.0+dfsg-4ubuntu0.22.04.1"
        },
        {
            "binary_name": "tigervnc-xorg-extension",
            "binary_version": "1.12.0+dfsg-4ubuntu0.22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34352.json"
Ubuntu:24.04:LTS
tigervnc

Package

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

Affected ranges

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

Affected versions

1.*
1.12.0+dfsg-8
1.13.1+dfsg-1
1.13.1+dfsg-2
1.13.1+dfsg-2build1
1.13.1+dfsg-2build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tigervnc-common",
            "binary_version": "1.13.1+dfsg-2build2"
        },
        {
            "binary_name": "tigervnc-scraping-server",
            "binary_version": "1.13.1+dfsg-2build2"
        },
        {
            "binary_name": "tigervnc-standalone-server",
            "binary_version": "1.13.1+dfsg-2build2"
        },
        {
            "binary_name": "tigervnc-tools",
            "binary_version": "1.13.1+dfsg-2build2"
        },
        {
            "binary_name": "tigervnc-viewer",
            "binary_version": "1.13.1+dfsg-2build2"
        },
        {
            "binary_name": "tigervnc-xorg-extension",
            "binary_version": "1.13.1+dfsg-2build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34352.json"
Ubuntu:25.10
tigervnc

Package

Name
tigervnc
Purl
pkg:deb/ubuntu/tigervnc?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.14.1+dfsg-1
1.15.0+dfsg-1
1.15.0+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tigervnc-common",
            "binary_version": "1.15.0+dfsg-2"
        },
        {
            "binary_name": "tigervnc-scraping-server",
            "binary_version": "1.15.0+dfsg-2"
        },
        {
            "binary_name": "tigervnc-standalone-server",
            "binary_version": "1.15.0+dfsg-2"
        },
        {
            "binary_name": "tigervnc-tools",
            "binary_version": "1.15.0+dfsg-2"
        },
        {
            "binary_name": "tigervnc-viewer",
            "binary_version": "1.15.0+dfsg-2"
        },
        {
            "binary_name": "tigervnc-xorg-extension",
            "binary_version": "1.15.0+dfsg-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34352.json"
Ubuntu:26.04:LTS
tigervnc

Package

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

Affected ranges

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

Affected versions

1.*
1.15.0+dfsg-2
1.15.0+dfsg-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tigervnc-common",
            "binary_version": "1.15.0+dfsg-2build1"
        },
        {
            "binary_name": "tigervnc-scraping-server",
            "binary_version": "1.15.0+dfsg-2build1"
        },
        {
            "binary_name": "tigervnc-standalone-server",
            "binary_version": "1.15.0+dfsg-2build1"
        },
        {
            "binary_name": "tigervnc-tools",
            "binary_version": "1.15.0+dfsg-2build1"
        },
        {
            "binary_name": "tigervnc-viewer",
            "binary_version": "1.15.0+dfsg-2build1"
        },
        {
            "binary_name": "tigervnc-xorg-extension",
            "binary_version": "1.15.0+dfsg-2build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34352.json"
Ubuntu:Pro:20.04:LTS
tigervnc

Package

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

Affected ranges

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

Affected versions

1.*
1.9.0+dfsg-3
1.9.0+dfsg-4
1.10.1+dfsg-1
1.10.1+dfsg-2
1.10.1+dfsg-3
1.10.1+dfsg-3ubuntu0.1+esm2
1.10.1+dfsg-3ubuntu0.20.04.1
1.10.1+dfsg-3ubuntu0.20.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tigervnc-common",
            "binary_version": "1.10.1+dfsg-3ubuntu0.20.04.1+esm1"
        },
        {
            "binary_name": "tigervnc-scraping-server",
            "binary_version": "1.10.1+dfsg-3ubuntu0.20.04.1+esm1"
        },
        {
            "binary_name": "tigervnc-standalone-server",
            "binary_version": "1.10.1+dfsg-3ubuntu0.20.04.1+esm1"
        },
        {
            "binary_name": "tigervnc-viewer",
            "binary_version": "1.10.1+dfsg-3ubuntu0.20.04.1+esm1"
        },
        {
            "binary_name": "tigervnc-xorg-extension",
            "binary_version": "1.10.1+dfsg-3ubuntu0.20.04.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34352.json"