CVE-2026-23732
High
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, FastGlyph parsing trusts `cbData`/remaining length and never validates against the minimum size implied by `cx/cy`. A malicious server can trigger a client‑side global buffer overflow, causing a crash (DoS). Version 3.21.0 contains a patch for the issue.
SeverityHigh
CVSS7.5
Exploit probability—
ProductFreerdp
PublishedJan 19, 2026
First seenJan 19, 2026
Weakness typeCWE-122CWE-122
How to fix
Update
- freerdp freerdp3.21.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freerdp freerdp | v < 3.21.0 | 3.21.0 |
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