What is CVE-2026-33984?

CVE-2026-33984 is a high-severity vulnerability in Freerdp, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-03-30.

How severe is CVE-2026-33984?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Freerdp

CVE-2026-33984

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, in resize_vbar_entry() in libfreerdp/codec/clear.c, vBarEntry->size is updated to vBarEntry->count before the winpr_aligned_recalloc() call. If reall…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (15.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Freerdp — versions < 3.24.2

Weakness classification (CWE)

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8469-2xcx-frf6 (x_refsource_CONFIRM)
https://github.com/FreeRDP/FreeRDP/commit/dc7fdb165095139be779a4000199bc1706b06ad5 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33984?: CVE-2026-33984 is a high-severity vulnerability in Freerdp, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-03-30.
How severe is CVE-2026-33984?: High severity. CVSS v3 base score is 7.5 out of 10.