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Fencer Vulns
high 7.5

CVE-2018-8789 json

FreeRDP prior to version 2.0.0-rc4 contains several Out-Of-Bounds Reads in the NTLM Authentication module that results in a Denial of Servi…

published 2018-11-29 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-20398

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.2%
EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

FreeRDP prior to version 2.0.0-rc4 contains several Out-Of-Bounds Reads in the NTLM Authentication module that results in a Denial of Service (segfault).

Patch / fix

  • freerdp2 Debian 12 2.0.0~git20181120.1.e21b72c95+dfsg1-1

debian advisories DEBIAN-CVE-2018-8789

  • freerdp Ubuntu 16.04 LTS 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3
  • freerdp Ubuntu 18.04 LTS 1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.1
  • freerdp2 Ubuntu 18.04 LTS 2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1

ubuntu advisories UBUNTU-CVE-2018-8789

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • freerdp SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 2.1.2-12.20.1
  • vinagre SLE Workstation Extension 12 SP5 3.20.2-16.3.3
  • freerdp SLE Workstation Extension 15 2.0.0~rc4-3.3.1
  • freerdp SLED 12 SP4, SLED 12 SP3, SLE Workstation Extension 12 SP4 +3 more 2.0.0~git.1463131968.4e66df7-12.8.1

suse advisories SUSE-SU-2020:2272-1SUSE-SU-2019:0539-1SUSE-SU-2019:0134-1

  • freerdp2 openSUSE Tumbleweed 2.4.0-2.1

opensuse advisories openSUSE-SU-2024:10768-1

  • freerdp Alpine 3.24, Alpine 3.23, Alpine 3.22 +13 more 2.0.0_rc4-r0
  • freerdp2 Alpine 3.24, Alpine 3.23, Alpine 3.22 2.0.0_rc4-r0

alpine advisories ALPINE-CVE-2018-8789

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-8789 updated cvss 6.5

freerdp: Several out-of-bounds reads in NTLM authentication module resulting in a denial of service

  • Red Hat Enterprise Linux 6 freerdp, freerdp-libs, freerdp-plugins Red Hat Enterprise Linux 7 freerdp, libwinpr, freerdp-libs, freerdp-plugins Red Hat Enterprise Linux 8 freerdp, libwinpr, freerdp-libs
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.24% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • research.checkpoint.com https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Check Point Software Technologies Ltd. FreeRDP

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.