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01 Record

CVE-2019-8262

UltraVNC revision 1203 has multiple heap buffer overflow vulnerabilities in VNC client code inside Ultra decoder, which results in code execution. This attack appears to be exploitable via network

UnratedPUBLISHEDCNA: Kaspersky
CNA base scoreUnratedNo CNA CVSS vector
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02 Description

UltraVNC revision 1203 has multiple heap buffer overflow vulnerabilities in VNC client code inside Ultra decoder, which results in code execution. This attack appears to be exploitable via network

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
4.84% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 91.7% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2019-03-05 15:00Z7 YR AGO
Last updated
2024-09-16 16:49Z2 YR AGO
Reserved
2019-02-12
Assigning CNA
Kaspersky
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-122Heap-based Buffer OverflowVariant
  • CWE-787Out-of-bounds WriteBase
Data version
5.1
Document digest
26b7c027f1c9090667f944af4be2551a5de2ab2aa172135bb731df619c3bdcf8

05 Affected products

VendorProductVersionsPlatforms
UltraVNCUltraVNC1.2.2.3—

06 References