CVE-2023-39352: debian debian_linux Out-of-bounds Write
Vulnerability summary
CVE-2023-39352 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 1.54% chance of exploitation in the next 30 days, higher than 74.4% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 8 · Related 5Timeline
- 31-08-2023PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an invalid offset validation leading to Out Of Bound Write. This can be triggered when the values `rect->left` and `rect->top` are exactly equal to `surface->width` and `surface->height`. eg. `rect->left` == `surface->width` && `rect->top` == `surface->height`. In practice this should cause a crash. 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.
CVSS metrics
4 scores · 4 sources · 1 version- CVE.orgCNA5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.54%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
0.00 pp
From 1.54% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundFreerdp
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- freerdp2< 2.11.7+dfsg1-6~deb12u1
- debian_linuxEOL10.0
Fedoraproject1 product
- fedoraEOL37 | 38 | 39
Freerdp1 product
- freerdp≥ 3.0.0-beta1, < 3.0.0-beta3 | < 2.11.0 | 3.0.0:beta1 | 3.0.0:beta2
Ubuntu1 product
- freerdp2< 2.2.0+dfsg1-0ubuntu0.18.04.4+esm2 | < 2.2.0+dfsg1-0ubuntu0.20.04.6 | < 2.6.1+dfsg1-3ubuntu2.5
4 vendors · 5 products
References
13 links- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-whwr-qcf2-2mvjX Refsource CONFIRMREPORTExploitVendor Advisory
- github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/gdi/gfx.cX Refsource MISCREPORTIssue Tracking
- lists.fedoraproject.org/archives/…Mailing List
- lists.fedoraproject.org/archives/…Mailing List
- lists.fedoraproject.org/archives/…Mailing List
- security.gentoo.org/glsa/202401-16Third Party Advisory