FreeRDP has a heap-buffer-overflow in ndr_read_uint8Array
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.8epss 0.8%
exploitation probability
0.8%top 46% of all CVEs
observed exploitation
nono source reports it
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, RDPEAR’s NDR array reader does not perform bounds checking on the on‑wire element count and can write past the heap buffer allocated from hints, causing a heap buffer overflow in ndr_read_uint8Array. This vulnerability is fixed in 3.20.1.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
FreeRDP · FreeRDPReferences
https://access.redhat.com/errata/RHSA-2026:19033https://access.redhat.com/errata/RHSA-2026:3068https://access.redhat.com/errata/RHSA-2026:4121https://access.redhat.com/security/cve/CVE-2026-22853https://bugzilla.redhat.com/show_bug.cgi?id=2429647https://github.com/FreeRDP/FreeRDP/releases/tag/3.20.1https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-47v9-p4gp-w5chhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22853.json