Is CVE-2023-39350 in the CISA KEV catalog?

No. CVE-2023-39350 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-39350?

CVE-2023-39350 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2023-39350?

CVE-2023-39350 has an EPSS score of 1.39% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-39350?

Upgrade freerdp2 on debian 11 to 2.3.0+dfsg1-2+deb11u2 or later. Fixes are available for 23 affected products.

CVE & CISA-KEV Catalog

CVE-2023-39350

MEDIUM

5.9

CVSS v3

NVD

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. This issue affects Clients only. Integer underflow leading to DOS (e.g. abort due to `WINPR_ASSERT` with default compilation flags). When an insufficient blockLen is provided, and proper length validation is not performed, an Integer Underflow occurs, leading to a Denial of Service (DOS) vulnerability. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CWE-191

How to fix

Remediation Available

freerdp2Debian

Fixed in:2.3.0+dfsg1-2+deb11u2CVE-2023-39350

Fixed in:2.11.7+dfsg1-6~deb12u1CVE-2023-39350

freerdpRed Hat / RHEL

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdpRocky

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp-debuginfoRed Hat / RHEL

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp-debuginfoRocky

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp-debugsourceRed Hat / RHEL

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp-debugsourceRocky

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp-develRed Hat / RHEL

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp-develRocky

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp-libsRocky

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp-libsRed Hat / RHEL

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp-libs-debuginfoRed Hat / RHEL

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp-libs-debuginfoRocky

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

libwinprRocky

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

libwinprRed Hat / RHEL

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

libwinpr-debuginfoRed Hat / RHEL

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

libwinpr-debuginfoRocky

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

libwinpr-develRed Hat / RHEL

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

libwinpr-develRocky

Fixed in:2:2.11.2-1.el9RHSA-2024:2208

freerdp2Ubuntu

Fixed in:2.2.0+dfsg1-0ubuntu0.18.04.4+esm1USN-6401-1

Fixed in:2.2.0+dfsg1-0ubuntu0.20.04.5USN-6401-1

Fixed in:2.6.1+dfsg1-3ubuntu2.4USN-6401-1

Fixed in:2.10.0+dfsg1-1ubuntu0.2USN-6401-1

libfreerdp2-2Ubuntu

Fixed in:2.2.0+dfsg1-0ubuntu0.18.04.4+esm1USN-6401-1

Fixed in:2.2.0+dfsg1-0ubuntu0.20.04.5USN-6401-1

Fixed in:2.6.1+dfsg1-3ubuntu2.4USN-6401-1

Fixed in:2.10.0+dfsg1-1ubuntu0.2USN-6401-1

libwinpr2-2Ubuntu

Fixed in:2.2.0+dfsg1-0ubuntu0.18.04.4+esm1USN-6401-1

Fixed in:2.2.0+dfsg1-0ubuntu0.20.04.5USN-6401-1

Fixed in:2.6.1+dfsg1-3ubuntu2.4USN-6401-1

libwinpr2-devUbuntu

Fixed in:2.2.0+dfsg1-0ubuntu0.18.04.4+esm1USN-6401-1

Fixed in:2.2.0+dfsg1-0ubuntu0.20.04.5USN-6401-1

Fixed in:2.6.1+dfsg1-3ubuntu2.4USN-6401-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.39%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Third-Party Advisory2

Mailing List3

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-191 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0497	Critical	9.8	100%	KEV	Fix
CVE-2020-36221	High	7.5	84%	-	Fix
CVE-2020-36228	High	7.5	83%	-	Fix
CVE-2023-31102	High	7.8	71%	-	Fix
CVE-2024-38063	Critical	9.8	71%	-	Fix
CVE-2017-14496	High	7.5	66%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.