CVE-2026-45700

Publication date 29 May 2026

Last updated 18 June 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, FreeRDP's planar bitmap decoder has an out-of-bounds heap write when decoding RLE planar data. In libfreerdp/codec/planar.c, freerdp_bitmap_decompress_planar() validates the X destination coordinate nXDst against the caller-provided destination stride (nDstStep) even when it is writing into the internal temp buffer pTempData. An attacker can bypass the check with a large nDstStep and a large nXDst, causing planar_decompress_plane_rle() to write past the end of pTempData. This vulnerability is fixed in 3.26.0.

Status

Package Ubuntu Release Status
freerdp 26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
freerdp2 26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble
Fixed 2.11.5+dfsg1-1ubuntu0.1~esm6
22.04 LTS jammy
Fixed 2.6.1+dfsg1-3ubuntu2.11
20.04 LTS focal
Fixed 2.6.1+dfsg1-0ubuntu0.20.04.2+esm4
18.04 LTS bionic
Fixed 2.2.0+dfsg1-0ubuntu0.18.04.4+esm6
freerdp3 26.04 LTS resolute
Fixed 3.24.2+dfsg-1ubuntu1.1
25.10 questing
Fixed 3.16.0+dfsg-2ubuntu0.5
24.04 LTS noble
Fixed 3.5.1+dfsg1-0ubuntu1.6
22.04 LTS jammy Not in release

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Severity score breakdown

CVSS version:

Base score 7.7 · High

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Base score 9.8 · Critical

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references

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