The Xvnc server in TigerVNC allows remote attackers to cause a denial of service (invalid…
Priority LOW 39CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
The Xvnc server in TigerVNC allows remote attackers to cause a denial of service (invalid memory access and crash) by terminating a TLS handshake early.
Why it matters now
EPSS 0.03179 88th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* | 42.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:* | 42.2 | Vulnerable | openSUSE |
| cpe:2.3:a:tigervnc:tigervnc:0.0.90:*:*:*:*:*:*:* | 0.0.90 | Vulnerable | TigerVNC |
| cpe:2.3:a:tigervnc:tigervnc:0.0.91:*:*:*:*:*:*:* | 0.0.91 | Vulnerable | TigerVNC |
| cpe:2.3:a:tigervnc:tigervnc:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | TigerVNC |
| cpe:2.3:a:tigervnc:tigervnc:1.0.1:*:*:*:*:*:*:* | 1.0.1 | Vulnerable | TigerVNC |
| cpe:2.3:a:tigervnc:tigervnc:1.1.0:*:*:*:*:*:*:* | 1.1.0 | Vulnerable | TigerVNC |
| cpe:2.3:a:tigervnc:tigervnc:1.3:*:*:*:*:*:*:* | 1.3 | Vulnerable | TigerVNC |
| cpe:2.3:a:tigervnc:tigervnc:1.3.1:*:*:*:*:*:*:* | 1.3.1 | Vulnerable | TigerVNC |
| cpe:2.3:a:tigervnc:tigervnc:1.7:*:*:*:*:*:*:* | 1.7 | Vulnerable | TigerVNC |
- cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* Versions 42.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:* Versions 42.2 Vulnerable ·openSUSE
- cpe:2.3:a:tigervnc:tigervnc:0.0.90:*:*:*:*:*:*:* Versions 0.0.90 Vulnerable ·TigerVNC
- cpe:2.3:a:tigervnc:tigervnc:0.0.91:*:*:*:*:*:*:* Versions 0.0.91 Vulnerable ·TigerVNC
- cpe:2.3:a:tigervnc:tigervnc:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·TigerVNC
- cpe:2.3:a:tigervnc:tigervnc:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 Vulnerable ·TigerVNC
- cpe:2.3:a:tigervnc:tigervnc:1.1.0:*:*:*:*:*:*:* Versions 1.1.0 Vulnerable ·TigerVNC
- cpe:2.3:a:tigervnc:tigervnc:1.3:*:*:*:*:*:*:* Versions 1.3 Vulnerable ·TigerVNC
- cpe:2.3:a:tigervnc:tigervnc:1.3.1:*:*:*:*:*:*:* Versions 1.3.1 Vulnerable ·TigerVNC
- cpe:2.3:a:tigervnc:tigervnc:1.7:*:*:*:*:*:*:* Versions 1.7 Vulnerable ·TigerVNC
Remediation
Red Hat 2 advisories
- RHSA-2017:2000 Released 2017-08-01 · Red Hat rating Moderatetigervnc and fltk security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) fltk-1.3.4-1.el7, tigervnc-1.8.0-1.el7, tigervnc-icons-1.8.0-1.el7 +3
- Red Hat Enterprise Linux Client Optional (v. 7) fltk-devel-1.3.4-1.el7, fltk-fluid-1.3.4-1.el7, fltk-static-1.3.4-1.el7 +2
- Red Hat Enterprise Linux ComputeNode (v. 7) tigervnc-1.8.0-1.el7, tigervnc-license-1.8.0-1.el7, tigervnc-server-minimal-1.8.0-1.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) fltk-1.3.4-1.el7, fltk-devel-1.3.4-1.el7, fltk-fluid-1.3.4-1.el7 +6
- Red Hat Enterprise Linux Server (v. 7) fltk-1.3.4-1.el7, fltk-1.3.4-1.el7.ppc, tigervnc-1.8.0-1.el7 +4
- Red Hat Enterprise Linux Server Optional (v. 7) fltk-devel-1.3.4-1.el7, fltk-devel-1.3.4-1.el7.ppc, fltk-fluid-1.3.4-1.el7 +4
- Red Hat Enterprise Linux Workstation (v. 7) fltk-1.3.4-1.el7, tigervnc-1.8.0-1.el7, tigervnc-icons-1.8.0-1.el7 +3
- Red Hat Enterprise Linux Workstation Optional (v. 7) fltk-devel-1.3.4-1.el7, fltk-fluid-1.3.4-1.el7, fltk-static-1.3.4-1.el7 +2
- RHSA-2017:0630 Released 2017-03-21 · Red Hat rating Moderatetigervnc security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) tigervnc-1.1.0-24.el6, tigervnc-server-1.1.0-24.el6
- Red Hat Enterprise Linux Desktop Optional (v. 6) tigervnc-server-applet-1.1.0-24.el6, tigervnc-server-module-1.1.0-24.el6
- Red Hat Enterprise Linux HPC Node Optional (v. 6) tigervnc-1.1.0-24.el6, tigervnc-server-1.1.0-24.el6, tigervnc-server-applet-1.1.0-24.el6 +1
- Red Hat Enterprise Linux Server (v. 6) tigervnc-1.1.0-24.el6, tigervnc-server-1.1.0-24.el6
- Red Hat Enterprise Linux Server Optional (v. 6) tigervnc-server-applet-1.1.0-24.el6, tigervnc-server-module-1.1.0-24.el6
- Red Hat Enterprise Linux Workstation (v. 6) tigervnc-1.1.0-24.el6, tigervnc-server-1.1.0-24.el6
- Red Hat Enterprise Linux Workstation Optional (v. 6) tigervnc-server-applet-1.1.0-24.el6, tigervnc-server-module-1.1.0-24.el6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:2000 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:2000 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2017:2000 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:2000 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2017:0630 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2017:0630 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2017:0630 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2017:0630 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:2000 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2017:0630 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:2000 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2017:0630 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:2000 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2017:0630 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:2000 |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-10207
- 2026-10-03 Alias added: GHSA-xv2c-qf7g-w8gj
References
Exploit 2
Patch 2
Sources
- CVE-2016-10207 · CVE Program
- CVE-2016-10207 · NVD
- FIRST EPSS
- GHSA-xv2c-qf7g-w8gj · GitHub Advisory Database · CC BY 4.0
- CVE-2016-10207 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences