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CVE-2023-39352

30
FAUCET Score

CVE-2023-39352 is a critical out-of-bounds write vulnerability affecting FreeRDP, an open-source Remote Desktop Protocol client, and its derivatives in Debian and Fedora. This flaw occurs due to invalid offset validation, specifically when rectangle dimensions match surface dimensions, leading to a crash. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk with network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there are no known active exploits, public exploit code, or Metasploit modules, the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness among security researchers. Users are strongly advised to upgrade to FreeRDP versions 2.11.0 or 3.0.0-beta3 immediately, as no workarounds exist.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.11.0CPE matchmatch criteria
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:freerdp:freerdp:3.0.0:beta1:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:freerdp:freerdp:3.0.0:beta2:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.30%
Probability of exploitation in next 30 days
EPSS Percentile
67.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0130 is in the 54th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: freerdp-2:2.11.2-1.el9
View patch
github_advisoryvendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: freerdp

Vendor Advisories (1)

redhatCVE-2023-39352Moderate

freerdp: invalid offset validation leading to Out Of Bound Write

Aug 31, 2023

References

lists.debian.org / debian-lts-announce/2025/02/msg00016.html
github.com / FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/gdi/gfx.c
Issue Tracking
github.com / FreeRDP/FreeRDP/security/advisories/GHSA-whwr-qcf2-2mvj
ExploitVendor Advisory
lists.debian.org / debian-lts-announce/2023/10/msg00008.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/A6LLDAPEXRDJOM3PREDDD267SSNT77DP
Mailing List
lists.fedoraproject.org / archives/list/[email protected]/message/IHMTGKCZXJPQOR5ZD2I4GPDNP2DKRXMF
Mailing List
lists.fedoraproject.org / archives/list/[email protected]/message/OH2ATH2BKDNKCJAU4WPPXK4SHLE3UJUV
Mailing List
security.gentoo.org / glsa/202401-16
Third Party Advisory