CVE-2020-11523: Integer Overflow
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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/freerdp2to a version that resolves this vulnerability.Fixed in 2.3.0+dfsg1-2+deb11u1Fixed in 2.3.0+dfsg1-2+deb11u3Fixed in 2.11.7+dfsg1-6~deb12u1 - Upgrade
Upgrade
alpine/freerdpto a version that resolves this vulnerability.Fixed in 2.0.0-r0 - Upgrade
Upgrade
alpine/freerdp2to a version that resolves this vulnerability.Fixed in 2.0.0-r0
Event History
Frequently Asked Questions
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.
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.
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.
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.
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.