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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-44420

38
FAUCET Score

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server-side clipboard (cliprdr) channel by sending a CB_CLIP_CAPS PDU with a too-small capabilitySetLength. This can crash the server process (remote DoS) and may be exploitable for code execution because it corrupts heap memory. This vulnerability is fixed in 3.26.0.

First published: May 29, 2026Last modified: May 29, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 3.26.0CPE matchmatch criteria
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.67%
Probability of exploitation in next 30 days
EPSS Percentile
88.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0367 is in the 88th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

ubuntupatch availablevia ubuntu_usn
Product: freerdp3 (noble)Fixed in: 3.30.0+dfsg-0ubuntu0.24.04.1
ubuntupatch availablevia ubuntu_usn
Product: freerdp3 (resolute)Fixed in: 3.30.0+dfsg-0ubuntu0.26.04.1
github_advisoryworkaround availablevia nvd_reference
View patch

Vendor Advisories (1)

ubuntuUSN-8561-1

FreeRDP vulnerabilities

Jul 20, 2026

References

access.redhat.com / errata/RHSA-2026:36203
access.redhat.com / errata/RHSA-2026:46393
access.redhat.com / security/cve/CVE-2026-44420
bugzilla.redhat.com / show_bug.cgi
security.access.redhat.com / data/csaf/v2/vex/2026/cve-2026-44420.json
github.com / yhirose/cpp-httplib/security/advisories/GHSA-h6wq-j5mv-f3q8
github.com / FreeRDP/FreeRDP/security/advisories/GHSA-mvpx-xj7r-3p3r
ExploitMitigationVendor Advisory