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CVE-2026-79896

Fortra BoKS Manager boks_portmux TLS ClientHello out-of-bounds read vulnerability

Fortra BoKS Manager contains an out-of-bounds read vulnerability in the custom TLS ClientHello parser used by boks_portmux. A remote unauthenticated attacker can submit a malformed ClientHello and terminate boks_portmux. Although the daemon is normally restarted automatically, repeated requests can sustain the service interruption.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Fortra
Products
Boks Manager
CVE-2026-79901

Predictable Active Directory service-account passwords in BoKS Manager

In deployments using BoKS keytab management, affected versions of boks_keytabmd generate Active Directory service-account passwords from a predictable pseudo-random sequence seeded with the current Unix timestamp. An attacker who knows the service principal and can estimate the password-change time can reproduce a limited candidate set and verify candidates offline.

CVSS 3.1 · 9.9 Critical EPSS < 1% KEV · Not listed
Vendors
Fortra
Products
Boks Manager Boks-server
CVE-2026-79900

Heap overflow in KSL checksum initialization

boks_ksllogsd accepts a checksum algorithm name in the MD field of an authenticated KSL start message. Affected releases verify that OpenSSL recognizes the digest name but do not verify that the value fits in a fixed 16-byte checksum context field before copying it. An authenticated KSL client can supply an oversized, OpenSSL-recognized digest name and write beyond the end of the heap allocation.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Fortra
Products
Boks Manager Boks-server
CVE-2026-79899

Fortra BoKS Manager bccgethostcert insecure temporary file vulnerability

Fortra BoKS Manager contains an insecure temporary file vulnerability in bccgethostcert. The utility creates predictable temporary files without first setting a restrictive umask. A local user on the BoKS Master who can read files under BOKS_tmp may be able to obtain CA secret or host private-key material while the utility runs, or obtain CA secret material left behind after successful certificate creation.

CVSS 3.1 · 7.9 High EPSS < 1% KEV · Not listed
Vendors
Fortra
Products
Boks Manager
CVE-2026-79898

Fortra BoKS Manager crlserver command injection vulnerability

Fortra BoKS Manager contains a command injection vulnerability in crlserver. An authenticated user authorized to add CRL URLs through BCC, the WSI REST or SOAP API, or the cacrl command-line interface could cause shell command substitution to be processed by crlserver as root on the BoKS Master. BCC and WSI provide network-accessible administration paths and do not require a local sudo or suexec rule; non-root use of cacrl requires such a rule.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Vendors
Fortra
Products
Boks Manager
CVE-2025-13532

Weak Password Hash in Core Privileged Access Manager (BoKS)

Insecure defaults in the Server Agent component of Fortra's Core Privileged Access Manager (BoKS) can result in the selection of weak password hash algorithms.  This issue affects BoKS Server Agent 9.0 instances that support yescrypt and are running in a BoKS 8.1 domain.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Fortra
Products
Boks