CVE-2020-11523: Integer Overflow
Published May 15, 2020
·Updated
Last updated 25 August 2025
Other sources
libfreerdp/gdi/region.c in FreeRDP versions > 1.0 through 2.0.0-rc4 has an Integer Overflow.
— Launchpad
Affected Software
14 affected componentsFixes available
FreeRDP freerdp>1.0.0<2.0.0
FreeRDP freerdp=2.0.0
FreeRDP freerdp=2.0.0-rc0
FreeRDP freerdp=2.0.0-rc1
FreeRDP freerdp=2.0.0-rc2
FreeRDP freerdp=2.0.0-rc3
FreeRDP freerdp=2.0.0-rc4
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
Canonical Ubuntu Linux=20.04
Debian Debian Linux=9.0
openSUSE Leap=15.1
debian/freerdp2
2.3.0+dfsg1-2+deb11u12.3.0+dfsg1-2+deb11u32.11.7+dfsg1-6~deb12u1
Remediation
Patch Available
Event History
May 15, 2020
CVE Published
via MITRE·04:12 PM
Data Sourced
via MITRE·04:12 PM
Description
Jan 11, 2024
Data Sourced
via Launchpad·11:35 PM
Description
Feb 22, 2026
Data Sourced
via Ubuntu·03:44 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Debian·03:46 PM
DescriptionAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2020-11523?
CVE-2020-11523 has a medium severity rating due to the potential for an integer overflow leading to vulnerabilities in FreeRDP.
2
How do I fix CVE-2020-11523?
To fix CVE-2020-11523, update FreeRDP to versions 2.3.0+dfsg1-2+deb11u1 or 2.10.0+dfsg1-1, or a later patched version.
3
Which versions of FreeRDP are affected by CVE-2020-11523?
FreeRDP versions greater than 1.0 up to and including 2.0.0-rc4 are affected by CVE-2020-11523.
4
Is my operating system vulnerable to CVE-2020-11523?
Operating systems running FreeRDP versions listed in the CVE, such as Debian and Ubuntu, may be vulnerable to CVE-2020-11523.
5
What type of vulnerability is CVE-2020-11523?
CVE-2020-11523 is classified as an integer overflow vulnerability that can lead to potential security risks.