Is CVE-2019-8264 in the CISA KEV catalog?

No. CVE-2019-8264 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-8264?

CVE-2019-8264 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2019-8264?

CVE-2019-8264 has an EPSS score of 3.13% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-8264?

Upgrade ultravnc to 1.2.2.3 or later.

CVE & CISA-KEV Catalog

CVE-2019-8264

CRITICALEPSS 86th pctl

9.8

CVSS v3

NVD

Description

UltraVNC revision 1203 has out-of-bounds access vulnerability in VNC client inside Ultra2 decoder, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1204.

CWE-788 CWE-125Out-of-bounds Read CWE-787Out-of-bounds Write

How to fix

Remediation Available

ultravncNVD

Affected:< 1.2.2.3Fixed in:1.2.2.3CVE-2019-8264derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

3.13%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Third-Party Advisory1

ics-cert.kaspersky.com

Other references5

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.