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 без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
Hyland OnBase contains an unauthenticated .NET Remoting exposure in the OnBase Workflow Timer Service (Hyland.Core.Workflow.NTService.exe). An attacker who can reach the service can send crafted .NET Remoting requests to default HTTP channel endpoints on TCP/8900 (e.g., TimerServiceAPI.rem and TimerServiceEvents.rem for Workflow) to trigger unsafe object unmarshalling, enabling arbitrary file read/write. By writing attacker-controlled content into web-accessible locations or chaining with other OnBase features, this can lead to remote code execution. The same primitive can be abused by supplying a UNC path to coerce outbound NTLM authentication (SMB coercion) to an attacker-controlled host.
Засегнати продукти
- Hyland OnBase Workflow Timer Service: 8.0 до 17.0.0
Вид слабост
История
- 13 февруари 2026 Публикувано
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-26221
- https://nvd.nist.gov/vuln/detail/CVE-2026-26221
- https://www.hyland.com/en/solutions/products/onbase
- https://community.hyland.com/resources/bulletins-and-notices/223223-security-update-onbase-workflow-timer-service-bulletin-ob2025-03
- https://www.vulncheck.com/advisories/hyland-onbase-timer-services-unauthenticated-net-remoting-rce