What’s Vulnerable › Vulnerabilities

CVE-2018-8788

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-11-29 · updated 2026-06-17
• Weakness: CWE-787

Description

FreeRDP prior to version 2.0.0-rc4 contains an Out-Of-Bounds Write of up to 4 bytes in function nsc_rle_decode() that results in a memory corruption and possibly even a remote code execution.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 18.10
• Debian Linux: 8.0
• FreeRDP: through 1.2.0; 2.0.0-rc1, 2.0.0-rc2, 2.0.0-rc3

References

• http://www.securityfocus.com/bid/106938
• https://access.redhat.com/errata/RHSA-2019:0697
• https://github.com/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659
• https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html
• https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/
• https://usn.ubuntu.com/3845-1/
• https://usn.ubuntu.com/3845-2/
• http://www.securityfocus.com/bid/106938
• https://access.redhat.com/errata/RHSA-2019:0697
• https://github.com/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659
• https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html
• https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/

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