CVE detail
CVE-2026-44421
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client by sending crafted RDPGFX PDUs. The bug is in gdi_CacheToSurface: it validates a destination rectangle that is clamped to UINT16_MAX, but then performs the copy using the original cacheEntry->width/height. This can cause a large out-of-bounds heap write and may lead to client crashes or code execution. This bug is reachable from a malicious RDP server, but only when the client has RDPGFX enabled. This vulnerability is fixed in 3.26.0.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 19.5 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
6 source links · newest first
- https://access.redhat.com/errata/RHSA-2026:46393access.redhat.com
No excerpt available.
Exploitaccess.redhat.comMay 29, 2026, 8:16 PM - https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44421.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comMay 29, 2026, 8:16 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2483471bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comMay 29, 2026, 8:16 PM - https://access.redhat.com/security/cve/CVE-2026-44421access.redhat.com
No excerpt available.
Exploitaccess.redhat.comMay 29, 2026, 8:16 PM - https://access.redhat.com/errata/RHSA-2026:36203access.redhat.com
No excerpt available.
Exploitaccess.redhat.comMay 29, 2026, 8:16 PM No excerpt available.
Exploitgithub.comMay 29, 2026, 8:16 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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