Description
FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the rdpdr_dump_packet function due to 32-bit unsigned integer wraparound in buffer bounds validation. A malicious RDP server can send a crafted RDPDR packet with computerNameLen set to 0xFFFFFFF0 to bypass bounds checks and trigger memory reads past the packet buffer, causing client crashes or heap disclosure in logs.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP | < 3.31.0 | 3.31.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | freerdp3 | 3.31.0+dfsg-1 | — |
| Debian 13 | freerdp3 | No fix yet | — |
| Debian 12 | freerdp2 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | freerdp3 | 3.31.0+dfsg-0ubuntu0.26.04.1 | — |
| Ubuntu 24.04 LTS | freerdp3 | 3.31.0+dfsg-0ubuntu0.24.04.1 | — |
| Ubuntu 22.04 LTS | freerdp2 | No fix yet | — |
| Ubuntu 18.04 LTS | freerdp | No fix yet | — |
| Ubuntu 16.04 LTS | freerdp | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | freerdp2 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | freerdp2 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | freerdp2 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | freerdp +5 | 2:3.10.3-12.el10_2.14 | RHSA-2026:75570 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | freerdp +5 | 2:3.10.3-12.el10_2.14 | ALSA-2026:75570 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | freerdp | 2:3.10.3-12.el10_2.14 | RLSA-2026:98598, RLSA-2026:75570 |
| Rocky Linux 10 | libwinpr +4 | 2:3.32.2-1.el10_2 | RLSA-2026:98598 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | freerdp +5 | 2:3.31.0-1.amzn2023 | ALAS2023-2026-2142 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | freerdp +5 | 2:3.10.3-12.el10_2.14 | ELSA-2026-75570 |
Advisories 7
- RLSA-2026:98598 Critical: freerdp security, bug fix, and enhancement update Rocky Linux Security Advisories · Nov 13, 2026
- WID-SEC-2026-3057 FreeRDP: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 11, 2026
- ALSA-2026:75570 Important: freerdp security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:75570 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 10, 2026
- RLSA-2026:75570 Important: freerdp security update Rocky Linux Security Advisories · Oct 6, 2026
- ELSA-2026-75570 Important: freerdp security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Oct 6, 2026
- ALAS2023-2026-2142 Important: freerdp security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 21, 2026
References
- GitHub Security Advisory (GHSA-c5gr-hmqp-pwj4) vendor-advisory
- VulnCheck Advisory: FreeRDP before 3.31.0 Out-of-Bounds Read via UINT32 Wraparound third-party-advisory