CVE-2018-7225

highpriority · track · 41EPSS 0.061 · 93 %ileEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
6.11% (93rd) EPSS
CVSS 7.5 · high
Is it mine?
60 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.

01

remediations

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

A vendor fix is available.

  • Fixedlibvncserver-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-0:0.9.9-12.el7_5.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-0:0.9.9-12.el7_5.src as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-0:0.9.9-12.el7_5.src as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-0:0.9.9-12.el7_5.src as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Client Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Workstation Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Client Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-debuginfo-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Workstation Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-devel-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Client Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-devel-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-devel-0:0.9.9-12.el7_5.i686 as a component of Red Hat Enterprise Linux Workstation Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-devel-0:0.9.9-12.el7_5.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-devel-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Client Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-devel-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
  • Fixedlibvncserver-devel-0:0.9.9-12.el7_5.x86_64 as a component of Red Hat Enterprise Linux Workstation Optional (v. 7)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2018:1055
02

cvss

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

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5.4–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4
v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.09criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.05.4mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Lsecondary · Red Hat Product Security US
v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-190USprimaryCWE-190USCWE-805US
04

affected products (60)

Products and version ranges known to be affected.

showing 20 of 60
05

advisories (1)

Vendor and ecosystem advisories describing this.

  • RHSA-2018:1055Red Hat Security Advisory: libvncserver security update2018-04-10csaf · redhat_csafUS

    An update for libvncserver is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bdunvdredhat_csafNVDCVE.orgMITRE
published 2018-02-19modified 2026-06-17
09

references (55)

External citations — patches, advisories, analysis.

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