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CVE-2026-26221: Deserialization of Untrusted Data

🗓️ 13 Feb 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Unauthenticated arbitrary file read/write or RCE in OnBase Workflow Timer Service via .NET Remoting.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-26221
13 Feb 202615:21
–attackerkb
circl
Circl
CVE-2026-26221
13 Feb 202617:31
–circl
cnnvd
CNNVD
Hyland Software Hyland OnBase 安全漏洞
13 Feb 202600:00
–cnnvd
cve
CVE
CVE-2026-26221
13 Feb 202615:21
–cve
cvelist
Cvelist
CVE-2026-26221 Hyland OnBase Timer Service Unauthenticated .NET Remoting RCE
13 Feb 202615:21
–cvelist
githubexploit
GithubExploit
Exploit for CVE-2026-26221
18 Feb 202608:36
–githubexploit
kitploit
Kitploit
CVE-2026-26221-Hyland-OnBase-Timer-Service-Unauthenticated-RCE
24 Sep 202618:00
–kitploit
nvd
NVD
CVE-2026-26221
13 Feb 202616:16
–nvd
ptsecurity
Positive Technologies
PT-2026-7997
13 Feb 202600:00
–ptsecurity
redhatcve
RedhatCVE
CVE-2026-26221
14 Feb 202619:22
–redhatcve
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25 May 2026 00:00Current
6.3Medium risk
Vulners AI Score6.3
CVSS 49.3
CVSS 3.19.8
EPSS0.01411
SSVC
0