Security readout for executives and security teams
This is an old RealVNC Windows Viewer client crash issue. A malicious or compromised VNC server can send a crafted framebuffer update that crashes vncviewer.exe. The business impact is mainly lost remote-access availability, not confirmed data theft or system takeover. Exposure is likely limited to organizations still running RealVNC Windows Client 4.1.2.0, especially where users connect to third-party, unmanaged, or potentially compromised VNC servers. The affected-product metadata is incomplete, but the CVE description names that client and version. Treat this as a legacy remote-access hygiene issue. It does not indicate confirmed compromise, but obsolete VNC clients can disrupt operations and create avoidable risk when users connect to untrusted servers. Mitigation focus: Inventory Windows endpoints for RealVNC vncviewer.exe version 4.1.2.0.; Check RealVNC guidance for fixed versions or supported replacement clients.; Remove or upgrade unsupported RealVNC viewer installations..
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
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ATT&CK lookup starting points
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CVE-2008-3493 mapping review
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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
- 6181CVE reference · exploit, x_refsource_EXPLOIT-DB
- realvnc-vncviewer-dos(44218)CVE reference · vdb-entry, x_refsource_XF
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.