What is CVE-2026-33983?

CVE-2026-33983 is a medium-severity vulnerability in Freerdp, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2026-03-30.

How severe is CVE-2026-33983?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Integer overflow in Freerdp

CVE-2026-33983

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, progressive_decompress_tile_upgrade() detects a mismatch via progressive_rfx_quant_cmp_equal() but only emits WLog_WARN, execution continues. The wra…

Vulnerability class: Integer Overflow

EPSS: 0.001 (20.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Freerdp — versions < 3.24.2

Weakness classification (CWE)

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4gfm-4p52-h478 (x_refsource_CONFIRM)
https://github.com/FreeRDP/FreeRDP/commit/78188ab479c8e6eb9ba2475b3732c76b4bbe5425 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33983?: CVE-2026-33983 is a medium-severity vulnerability in Freerdp, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2026-03-30.
How severe is CVE-2026-33983?: Medium severity. CVSS v3 base score is 6.5 out of 10.