Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-8785

33
FAUCET Score

CVE-2018-8785 describes a critical heap-based buffer overflow vulnerability in FreeRDP versions prior to 2.0.0-rc4, specifically within the zgfx_decompress() function. This flaw can lead to memory corruption and potentially remote code execution, affecting FreeRDP and Canonical Ubuntu Linux distributions. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Despite its critical severity, there is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), nor is it listed on the KEV catalog, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.2.0CPE matchmatch criteria
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:freerdp:freerdp:2.0.0:rc1:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:freerdp:freerdp:2.0.0:rc2:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:freerdp:freerdp:2.0.0:rc3:*:*:*:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.29%
Probability of exploitation in next 30 days
EPSS Percentile
93.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0729 is in the 89th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2018-8785Moderate

freerdp: Heap-based buffer overflow in zgfx_decompress() function

Oct 22, 2018

References

github.com / FreeRDP/FreeRDP/commit/602f4a2e14b41703b5f431de3154cd46a5750a2d
PatchVendor Advisory
research.checkpoint.com / reverse-rdp-attack-code-execution-on-rdp-clients
ExploitThird Party Advisory
usn.ubuntu.com / 3845-1
Third Party Advisory
securityfocus.com / bid/106938
Third Party AdvisoryVDB Entry