CVE-2019-8267

mediumpriority · track · 31EPSS 0.019 · 80 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
1.95% (80th) EPSS
CVSS 5 · medium
Is it mine?
8 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

UltraVNC revision 1207 has out-of-bounds read vulnerability in VNC client code inside TextChat module, which results in a denial of service (DoS) condition. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1208.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedSINUMERIK Access MyMachine /P2Pcisa_csaf_ot

    Update to V4.8

  • FixedSINUMERIK PCU base Win10 software /IPCcisa_csaf_ot

    Update to V14.00

  • FixedSINUMERIK PCU base Win7 software /IPCcisa_csaf_ot

    Update to V12.01 HF4

  • MitigationSINUMERIK Access MyMachine /P2Pcisa_csaf_ot

    Restrict access to the device to the internal or VPN network and to trusted IP addresses only.

  • MitigationSINUMERIK PCU base Win10 software /IPCcisa_csaf_ot

    Restrict access to the device to the internal or VPN network and to trusted IP addresses only.

  • MitigationSINUMERIK PCU base Win7 software /IPCcisa_csaf_ot

    Restrict access to the device to the internal or VPN network and to trusted IP addresses only.

02

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9
v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6
v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125US
04

affected products (8)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-20-161-06Siemens SINUMERIK2020-06-09icsa · cisa_csaf_otUS

    As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otnvdNVDCVE.orgMITRE
published 2019-03-08modified 2026-06-17
09

references (13)

External citations — patches, advisories, analysis.

scry

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