Integer Overflow or Wraparound The advisory has been revoked - it doesn't affect any version of package freerdp-server (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-FREERDPSERVER-15880375
- published3 Apr 2026
- disclosed30 Mar 2026
Introduced: 30 Mar 2026
CVE-2026-33983 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream freerdp-server package and not the freerdp-server package as distributed by RHEL.
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 wrapped value (247) is used as a shift exponent, causing undefined behavior and an approximately 80 billion iteration loop (CPU DoS). This issue has been patched in version 3.24.2.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2453220
- https://access.redhat.com/security/cve/CVE-2026-33983
- https://access.redhat.com/errata/RHSA-2026:11333
- https://access.redhat.com/errata/RHSA-2026:19033
- https://access.redhat.com/errata/RHSA-2026:8458
- https://github.com/FreeRDP/FreeRDP/commit/78188ab479c8e6eb9ba2475b3732c76b4bbe5425
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4gfm-4p52-h478