CVSS 4.0
7.1 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NCVE-2026-121402
High (7.1) in freerdp freerdp. EPSS 0.3% estimated probability of exploitation activity in the next 30 days.
On this page
FreeRDP before 3.32.2 contains a NULL pointer dereference vulnerability that allows malicious RDP servers to crash xfreerdp clients by sending a zero-width RDPGFX ResetGraphics PDU. The failed resize in gdi_resize_ex leaves the primary display null without ending the session, so a later bitmap update crashes the client in gdi_Bitmap_Paint.
Severity
CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H- EPSS
- 0.3% estimated probability of exploitation activity in the next 30 days; 17th percentile. Scored 2026-11-04. A forecast for this CVE across the internet, not for your own systems.
- CWE
- CWE-476 NULL Pointer Dereference
- OWASP Top 10
- A10:2025 Mishandling of Exceptional Conditions
- Published
- Modified
- Record from
- the NVD, synced
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| FreeRDP | before 3.32.2 |
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 12 | freerdp2 | no fix listed | DEBIAN-CVE-2026-121402 |
| Debian | 13 | freerdp3 | no fix listed | DEBIAN-CVE-2026-121402 |
| Debian | 14 | freerdp3 | 3.32.2+dfsg-1 | DEBIAN-CVE-2026-121402 |
From the distributions' data via OSV.dev: the Debian Security Tracker. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian.
Red Hat
Red Hat rates this Moderate.
A flaw was found in FreeRDP. A remote attacker controlling an RDP server can cause a connected FreeRDP client to crash via a crafted zero-width graphics reset that triggers a NULL pointer dereference, resulting in a denial of service. The user must connect to an attacker-controlled server.
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | freerdp | Affected | |
| Red Hat Enterprise Linux 6 | freerdp | Affected | |
| Red Hat Enterprise Linux 7 | freerdp | Fix deferred | |
| Red Hat Enterprise Linux 8 | freerdp | Affected | |
| Red Hat Enterprise Linux 9 | freerdp | Affected |
Contains Red Hat Security Data © Red Hat, Inc., licensed under CC BY 4.0. Source: https://access.redhat.com/security/data. Modified: reformatted. Red Hat's page for CVE-2026-121402.