HOMEVULNERABILITIESCVE-2026-27015
MEDIUM

CVE-2026-27015

CWE-617Published: February 25, 2026· Updated: Feb 27, 2026

6.5
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:10.3th

Official Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a missing bounds check in `smartcard_unpack_read_size_align()` (`libfreerdp/utils/smartcard_pack.c:1703`) allows a malicious RDP server to crash the FreeRDP client via a reachable `WINPR_ASSERT` → `abort()`. The crash occurs in upstream builds where `WITH_VERBOSE_WINPR_ASSERT=ON` (default in FreeRDP 3.22.0 / current WinPR CMake defaults). Smartcard redirection must be explicitly enabled by the user (e.g., `xfreerdp /smartcard`; `/smartcard-logon` implies `/smartcard`). Version 3.23.0 fixes the issue.

NVD Source

Technical Analysis

CVE-2026-27015 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

FreeRDP1 product
freerdp
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/FreeRDP/FreeRDP/commit/65d59d3b3c2f630f2ea862687ecf5f95f8115244
PATCHhttps://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7g72-39pq-4725
PATCHhttps://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7g72-39pq-4725

All References (3)

→
https://github.com/FreeRDP/FreeRDP/commit/65d59d3b3c2f630f2ea862687ecf5f95f8115244Patch
→
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7g72-39pq-4725Exploit · Mitigation · Patch · Vendor Advisory
→
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7g72-39pq-4725Exploit · Mitigation · Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2026-27015
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-617
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedFeb 25, 2026

Related CVEs (CWE-617)

CVE-2026-29116
8.7
CVE-2026-41485
7.7
CVE-2026-41584
7.5
CVE-2026-37220
7.5
CVE-2026-3608
7.5
CVE-2026-34063
7.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-27015 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2026-27015·NVD