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No exploitation reportedFix available

CVE-2018-8784

No exploitation reported by the sources we read.

  • Published2018-11-29
  • WeaknessCWE-120 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress_segment() that results in a memory corruption and probably even a remote code execution.

Timeline

dates in UTC
  1. 2018-11-2918:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-8784?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-8784?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Freerdp
BranchAffectedFixed in
1.2≤ 1.2.0no fix published
2.0= 2.0.0no fix published
Canonical ubuntu linux
BranchAffectedFixed in
18.4= 18.04no fix published
18.10= 18.10no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • freerdpUbuntu:16.04:LTSall versions · fixed in 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3
  • freerdpUbuntu:14.04:LTSall versions · fixed in 1.0.2-2ubuntu1.2
  • freerdpSUSE:Linux Enterprise Workstation Extension 15all versions · fixed in 2.0.0~rc4-3.3.1
  • freerdpSUSE:Linux Enterprise Workstation Extension 12 SP5all versions · fixed in 2.1.2-12.20.1
  • freerdpSUSE:Linux Enterprise Workstation Extension 12 SP4all versions · fixed in 2.0.0~git.1463131968.4e66df7-12.8.1
  • freerdpSUSE:Linux Enterprise Workstation Extension 12 SP3all versions · fixed in 2.0.0~git.1463131968.4e66df7-12.8.1
  • freerdpSUSE:Linux Enterprise Software Development Kit 12 SP5all versions · fixed in 2.1.2-12.20.1
  • freerdpSUSE:Linux Enterprise Software Development Kit 12 SP4all versions · fixed in 2.0.0~git.1463131968.4e66df7-12.8.1

8 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-8784 Red Hat Product Security

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

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • CNAweakness (CWE)CWE-120known since 2026-10-23
  • NVDweakness (CWE)CWE-787read 2026-10-23
  • FIRST EPSSEPSS score7.3 %2026-11-03
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2018-11-29
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-9392-mf3x-x7wh

Frequently asked questions

What is CVE-2018-8784?

FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress_segment() that results in a memory corruption and probably even a remote code execution.

Is CVE-2018-8784 actively exploited?

Active exploitation of CVE-2018-8784 has not been confirmed. Its EPSS score was 7.3% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-8784?

CVE-2018-8784 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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