Security readout for executives and security teams
A vulnerable VNC client library can be crashed by a malicious or compromised VNC server. The public description also says arbitrary code execution may be possible, but the bundle provides no CVSS score or confirmed exploitation. Prioritize systems where users or services connect to untrusted VNC servers. Exposure is most likely in software built with LibVNCClient from LibVNCServer before 0.9.11, especially VNC clients or embedded tools that connect to remote servers. Distribution advisories from Debian, Gentoo, and Ubuntu indicate packaged downstream exposure existed. Treat as a targeted patching priority for environments using VNC clients, remote-support tools, or embedded products based on LibVNCClient. Business urgency is higher where users connect to external or partner-controlled VNC servers. Mitigation focus: Upgrade LibVNCServer or LibVNCClient to 0.9.11 or later.; Apply relevant Debian, Gentoo, or Ubuntu vendor security updates.; Inventory applications that bundle or statically link LibVNCClient..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2016-9942 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/LibVNC/libvncserver/pull/137CVE reference · x_refsource_CONFIRM
- GLSA-201702-24CVE reference · vendor-advisory, x_refsource_GENTOO
- https://github.com/LibVNC/libvncserver/releases/tag/LibVNCServer-0.9.11CVE reference · x_refsource_CONFIRM
- [debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security updateCVE reference · mailing-list, x_refsource_MLIST
- USN-4587-1CVE reference · vendor-advisory, x_refsource_UBUNTU
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.