SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-8275

UltraVNC revision 1211 has multiple improper null termination vulnerabilities in VNC server code, which result in out-of-bound data being accessed by remote users.

CRITICAL 9.8EPSS 3.97%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.97%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

UltraVNC revision 1211 has multiple improper null termination vulnerabilities in VNC server code, which result in out-of-bound data being accessed by remote users. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
3.97% probability · 90th percentile
CISA KEV
Not listed
Weakness
CWE-170
Affected
uvnc/ultravnc · siemens/sinumerik access mymachine\/p2p · siemens/sinumerik pcu base win10 software\/ipc · siemens/sinumerik pcu base win7 software\/ipc
Source
vulnerability@kaspersky.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.