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TI-2019-05945 Aliases CVE-2019-8273GHSA-f693-2xf3-fcpc

Heap-based buffer overflow in Kaspersky Lab UltraVNC

Priority MEDIUM 53CWE-122Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

UltraVNC revision 1211 has a heap buffer overflow vulnerability in VNC server code inside file transfer request handler, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1212.

Why it matters now

EPSS 0.08263 94th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Kaspersky LabUltraVNC1.2.2.3—No fix listedCNA
  • UltraVNC VendorKaspersky Lab Affected 1.2.2.3 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*before 1.2.2.3Vulnerableuvnc
cpe:2.3:a:siemens:sinumerik_access_mymachine\/p2p:*:*:*:*:*:*:*:*before 4.8VulnerableSiemens
cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software\/ipc:*:*:*:*:*:*:*:*before 14.00VulnerableSiemens
cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software\/ipc:*:*:*:*:*:*:*:*up to 12.01VulnerableSiemens
  • cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:* Versions before 1.2.2.3 Vulnerable ·uvnc
  • cpe:2.3:a:siemens:sinumerik_access_mymachine\/p2p:*:*:*:*:*:*:*:* Versions before 4.8 Vulnerable ·Siemens
  • cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software\/ipc:*:*:*:*:*:*:*:* Versions before 14.00 Vulnerable ·Siemens
  • cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software\/ipc:*:*:*:*:*:*:*:* Versions up to 12.01 Vulnerable ·Siemens

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-8273
  2. 2026-10-03 Alias added: GHSA-f693-2xf3-fcpc

References

Advisory 3

  • TI-2005-02970 Heap-based buffer overflow in Kaspersky Antivirus (KAV) 5.0 and Kaspersky Personal… CVSS 2.0HIGH 10.0
  • TI-2004-00844 McAfee Anti-Virus Engine DATS drivers before 4398 released on Oct 13th 2004 and DATS… CVSS 2.0HIGH 7.5
  • TI-2007-00432 Heap-based buffer overflow in the arj.ppl module in the OnDemand Scanner in Kaspersky… CVSS 2.0HIGH 10.0
  • TI-2019-05946 Heap-based buffer overflow in Kaspersky Lab UltraVNC CVSS 3.1CRITICAL 9.8
  • TI-2019-05943 Heap-based buffer overflow in Kaspersky Lab UltraVNC CVSS 3.1CRITICAL 9.8
  • TI-2018-10915 Memory corruption in Kaspersky Lab Kraftway CVSS 3.0CRITICAL 9.8
See all 74 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences