High severity · published Jun 15, 2026
CVE-2026-9863
Core Privileged Access Manager (BoKS) upgrade tooling command injection vulnerability
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
Fortra BoKS Manager contains an OS command injection vulnerability in the client upgrade and patch tooling for legacy tar-based client installations. A malicious or compromised legacy tar-installed client selected for upgrade or patching may be able to cause commands to be executed on the BoKS Master during client version handling.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CP
Core Privileged Access Manager (BoKS) · Fortra
boks-server 8.1.0.0 through boks-server 8.1.0.22; boks-server 9.0.0.0 through boks-server 9.0.0.4 · source: vendor
CP
Core Privileged Access Manager Server · Fortra
8.1.0.0 before 8.1.0.23; 9.0.0.0 before 9.0.0.5 · source: NVD
Affected product
CP
Core Privileged Access Manager (BoKS)
Fortra
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-9863
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-9863
Vendor Advisory
https://www.fortra.com/security/advisories/product-security/fi-2026-008
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