Unrated severityNVD Advisory· Published Feb 25, 2026· Updated Feb 25, 2026
FreeRDP has possible Integer overflow in Stream_EnsureCapacity
CVE-2026-27951
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function Stream_EnsureCapacity can create an endless blocking loop. This may affect all client and server implementations using FreeRDP. For practical exploitation this will only work on 32bit systems where the available physical memory is >= SIZE_MAX. Version 3.23.0 contains a patch. No known workarounds are available.
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Affected products
8- osv-coords6 versionspkg:rpm/almalinux/freerdppkg:rpm/almalinux/freerdp-develpkg:rpm/almalinux/freerdp-libspkg:rpm/almalinux/libwinprpkg:rpm/almalinux/libwinpr-develpkg:rpm/opensuse/freerdp2&distro=openSUSE%20Tumbleweed
< 2:2.11.7-9.el8_10+ 5 more
- (no CPE)range: < 2:2.11.7-9.el8_10
- (no CPE)range: < 2:2.11.7-9.el8_10
- (no CPE)range: < 2:2.11.7-9.el8_10
- (no CPE)range: < 2:2.11.7-9.el8_10
- (no CPE)range: < 2:2.11.7-9.el8_10
- (no CPE)range: < 2.11.7-8.1
Patches
Vulnerability mechanics
References
2- github.com/FreeRDP/FreeRDP/commit/118afc0b954ba9d5632b7836ad24e454555ed113mitrex_refsource_MISC
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qcfc-ghxr-h927mitrex_refsource_CONFIRM
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