CVE-2026-24677
published 2026-02-09CVE-2026-24677: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, ecam_encoder_compress_h264 trusts server-controlled dimensions and does not…
PriorityP353critical9.1CVSS 3.1
AVNACLPRNUINSUCHINAH
EPSS
0.49%
39.3th percentile
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, ecam_encoder_compress_h264 trusts server-controlled dimensions and does not validate the source buffer size, leading to an out-of-bounds read in sws_scale. This vulnerability is fixed in 3.22.0.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | freerdp2 | < freerdp3 3.22.0+dfsg-1 (forky) | freerdp3 3.22.0+dfsg-1 (forky) |
| debian | freerdp3 | < freerdp3 3.22.0+dfsg-1 (forky) | freerdp3 3.22.0+dfsg-1 (forky) |
| freerdp | freerdp | < 3.22.0 | 3.22.0 |
CVSS provenance
nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
osv8.7HIGH
vendor_debian8.7HIGH
vendor_redhat8.7HIGH
vendor_ubuntu7.5HIGH
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OSV
freerdp2, freerdp3 vulnerabilities
osv·2026-02-16·CVSS 6.9
CVE-2026-23948 [MEDIUM] freerdp2, freerdp3 vulnerabilities
freerdp2, freerdp3 vulnerabilities
It was discovered that FreeRDP incorrectly handled memory under certain
circumstances, which could lead to a NULL pointer dereference. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2026-23948)
It was discovered that FreeRDP did not correctly validate the size of
certain variables, which could cause a buffer overflow. An attacker could
possibly use this issue to cause a denial of service or execute arbitrary
code. This issue only affected FreeRDP3 in Ubuntu 24.04 LTS and Ubuntu
25.10. (CVE-2026-24491)
It was discovered that FreeRDP did not correctly validate the size of
certain variables, which could cause a buffer overflow. An attacker could
possibly use this issue to cause a denial of service or execute arbitrary
code. (
OSV
CVE-2026-24677: FreeRDP is a free implementation of the Remote Desktop Protocol
osv·2026-02-09·CVSS 8.7
CVE-2026-24677 [HIGH] CVE-2026-24677: FreeRDP is a free implementation of the Remote Desktop Protocol
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, ecam_encoder_compress_h264 trusts server-controlled dimensions and does not validate the source buffer size, leading to an out-of-bounds read in sws_scale. This vulnerability is fixed in 3.22.0.
Ubuntu
FreeRDP vulnerabilities
vendor_ubuntu·2026-02-16·CVSS 7.5
CVE-2026-23948 [HIGH] FreeRDP vulnerabilities
Title: FreeRDP vulnerabilities
Summary: Several security issues were fixed in FreeRDP.
It was discovered that FreeRDP incorrectly handled memory under certain
circumstances, which could lead to a NULL pointer dereference. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2026-23948)
It was discovered that FreeRDP did not correctly validate the size of
certain variables, which could cause a buffer overflow. An attacker could
possibly use this issue to cause a denial of service or execute arbitrary
code. This issue only affected FreeRDP3 in Ubuntu 24.04 LTS and Ubuntu
25.10. (CVE-2026-24491)
It was discovered that FreeRDP did not correctly validate the size of
certain variables, which could cause a buffer overflow. An attacker could
possibly use this issue to c
Red Hat
freerdp: FreeRDP has a heap-buffer-overflow in ecam_encoder_compress_h264
vendor_redhat·2026-02-09·CVSS 8.7
CVE-2026-24677 [HIGH] CWE-825 freerdp: FreeRDP has a heap-buffer-overflow in ecam_encoder_compress_h264
freerdp: FreeRDP has a heap-buffer-overflow in ecam_encoder_compress_h264
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, ecam_encoder_compress_h264 trusts server-controlled dimensions and does not validate the source buffer size, leading to an out-of-bounds read in sws_scale. This vulnerability is fixed in 3.22.0.
A heap buffer overflow has been discovered in FreeRDP. ecam_encoder_compress_h264 trusts server-controlled dimensions and does not validate the source buffer size, leading to an out-of-bounds read in sws_scale.
Statement: Availability impact is limited to the FreeRDP instance on Red Hat Products. General system availability is not at risk.
Mitigation: Mitigation for this issue is either not available or the currently available options do not
Debian
CVE-2026-24677: freerdp2 - FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0...
vendor_debian·2026·CVSS 8.7
CVE-2026-24677 [HIGH] CVE-2026-24677: freerdp2 - FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0...
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, ecam_encoder_compress_h264 trusts server-controlled dimensions and does not validate the source buffer size, leading to an out-of-bounds read in sws_scale. This vulnerability is fixed in 3.22.0.
Scope: local
bookworm: open
bullseye: open
No detection rules found.
No public exploits indexed.
2026-02-09
Published