CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и след действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client by sending crafted RDPGFX PDUs. The bug is in gdi_CacheToSurface: it validates a destination rectangle that is clamped to UINT16_MAX, but then performs the copy using the original cacheEntry->width/height. This can cause a large out-of-bounds heap write and may lead to client crashes or code execution. This bug is reachable from a malicious RDP server, but only when the client has RDPGFX enabled. This vulnerability is fixed in 3.26.0.
Засегнати продукти
- FreeRDP FreeRDP: < 3.26.0
- Red Hat Red Hat Enterprise Linux 10: 2:3.10.3-12.el10_2.6 преди *
- Red Hat Red Hat Enterprise Linux 6
- Red Hat Red Hat Enterprise Linux 7
- Red Hat Red Hat Enterprise Linux 8
- Red Hat Red Hat Enterprise Linux 9
Вид слабост
История
- 29 май 2026 Публикувано
Други уязвимости в FreeRDP FreeRDP
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-44421
- https://nvd.nist.gov/vuln/detail/CVE-2026-44421
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-p6r2-4hgm-m6ff
- https://access.redhat.com/security/cve/CVE-2026-44421
- https://bugzilla.redhat.com/show_bug.cgi?id=2483471
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44421.json
- https://access.redhat.com/errata/RHSA-2026:46393
- https://access.redhat.com/errata/RHSA-2026:36203