CVE-2020-11523

libfreerdp/gdi/region.c in FreeRDP versions > 1.0 through 2.0.0-rc4 has an Integer Overflow.

• CWE-190

• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.htmlThird Party Advisory
• https://github.com/FreeRDP/FreeRDP/commits/masterPatch, Third Party Advisory
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4qrh-8cp8-4x42Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/08/msg00054.htmlThird Party Advisory
• https://pub.freerdp.com/cve/CVE-2020-11523/pocAnalysis_2.pdfExploit, Vendor Advisory
• https://usn.ubuntu.com/4379-1/Third Party Advisory
• https://usn.ubuntu.com/4382-1/Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.htmlThird Party Advisory
• https://github.com/FreeRDP/FreeRDP/commits/masterPatch, Third Party Advisory
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4qrh-8cp8-4x42Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/08/msg00054.htmlThird Party Advisory
• https://pub.freerdp.com/cve/CVE-2020-11523/pocAnalysis_2.pdfExploit, Vendor Advisory
• https://usn.ubuntu.com/4379-1/Third Party Advisory
• https://usn.ubuntu.com/4382-1/Third Party Advisory

Published

May 15, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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