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Vulnerability record · CVE-2018-8785 · published 29 November 2018

CVE-2018-8785: Freerdp classic buffer overflow vulnerability

Freerdp · Freerdp

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

9.8 CVSS 3.1 Critical EPSS 7.3% · top 5.8% CWE-120 · Classic buffer overflowCWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score, v2 7.5
7.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-8785), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.