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CVE-2019-8274

CRITICAL
9.8
CVSS Score
Published: March 9, 2019 at 12:00 AM UTC
Updated: June 17, 2026 at 02:41 AM UTC
4 products affected across 2 vendorsUltraVNCSinumerik Pcu Base WIN10 Software /ipcSinumerik Access Mymachine /p2p

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Severity
CRITICAL9.8
Exploit prediction
EPSS 8%

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Sinumerik Access Mymachine /p2p· Siemens
95%
v < 4.8
Affected range stops below 4.8, so it looks safe — our inference, not a vendor statement
Sinumerik Pcu Base WIN10 Software /ipc· Siemens
95%
v < 14.00
Affected range stops below 14.00, so it looks safe — our inference, not a vendor statement
Sinumerik Pcu Base WIN7 Software /ipc· Siemens
95%
v ≤ 12.01
UltraVNC· Uvnc
95%
v < 1.2.2.31.2.2.3
Affected range stops below 1.2.2.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-021-ultravnc-heap-based-buffer-overflow/
x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://www.us-cert.gov/ics/advisories/icsa-20-161-06

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-122CWE-787

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