FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress_segment() that results in a memory cor…

Published 7 y ago 2018-11-29 · modified 4 mo ago 2026-06-17 · JSON

CVSS

9.8

v3.1 · NVD

CISA KEV

not known exploited

EPSS

7.3%

percentile 94%

Public exploits

none known

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.

Exploit prediction (EPSS)

7.29% probability of exploitation in the next 30 days, higher than 94% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.1	9.8	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
NVD	2.0	7.5	`AV:N/AC:L/Au:N/C:P/I:P/A:P`

Affected products

Check Point Software Technologies Ltd. FreeRDP

Classification

Weakness

CWE-120 Buffer Copy without Checking Size of Input
CWE-787 Out-of-bounds Write

References

securityfocus.com /bid/106938 · vdb-entry, x_refsource_BID, x_transferred
usn.ubuntu.com /3845-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
research.checkpoint.com /reverse-rdp-attack-code-execution-on-rdp-clients/ · x_refsource_CONFIRM, x_transferred
github.com /FreeRDP/FreeRDP/commit/17c363a5162fd4dc77b1df54e48d7bd9bf6b3be7 · x_refsource_CONFIRM, x_transferred

Sources

CVE List: CVE-2018-8784
NVD: CVE-2018-8784

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.