CVE-2026-33983
Estado: ModificadaMedia (6.5)—
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.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Puntuación base: 6.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.80%
- Percentil entre todas las CVEs puntuadas: 55
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-190, CWE-252
- CWE-190
Referencias
- https://github.com/FreeRDP/FreeRDP/commit/78188ab479c8e6eb9ba2475b3732c76b4bbe5425
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4gfm-4p52-h478
- https://access.redhat.com/errata/RHSA-2026:10709
- https://access.redhat.com/errata/RHSA-2026:11332
- https://access.redhat.com/errata/RHSA-2026:11333
- https://access.redhat.com/errata/RHSA-2026:11336
- https://access.redhat.com/errata/RHSA-2026:11649
- https://access.redhat.com/errata/RHSA-2026:11651
- https://access.redhat.com/errata/RHSA-2026:12359
- https://access.redhat.com/errata/RHSA-2026:12388
- https://access.redhat.com/errata/RHSA-2026:19033
- https://access.redhat.com/errata/RHSA-2026:19349
- https://access.redhat.com/errata/RHSA-2026:8457
- https://access.redhat.com/errata/RHSA-2026:8458
- https://access.redhat.com/errata/RHSA-2026:8945
- https://access.redhat.com/errata/RHSA-2026:9656
- https://access.redhat.com/security/cve/CVE-2026-33983
- https://bugzilla.redhat.com/show_bug.cgi?id=2453220
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33983.json
JSON original (NVD)
Mostrar
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