Fortra BoKS Server Agent adjoin machine-account password generation vulnerability (CVE-2026-9864) | HOL Guard CVE

Medium · CVSS 4.8CVE-2026-9864

Fortra BoKS Server Agent adjoin machine-account password generation vulnerability

Answer in brief

CVE-2026-9864 records a Medium severity (CVSS 4.8) vulnerability in Fortra BoKS Server Agent adjoin machine-account password generation vulnerability. The current sources do not mark it as known exploited. The current feed maps Fortra/Core Privileged Access Manager (BoKS) (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 1, 2026Updated Oct 1, 2026Source checked Oct 1, 2026First seen by HOL Oct 1, 2026Material review Oct 1, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 4.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 4.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Fortra/Core Privileged Access Manager (BoKS) (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Fortra/Core Privileged Access Manager (BoKS)generic	>=8.1.0.0 <=8.1.0.29 \|\| >=9.0.0.0 <=9.0.0.5	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Fortra/Core Privileged Access Manager (BoKS).
Review the reported fix. Source-reported solution: Upgrade to a fixed boks-client release newer than 8.1.0.29 or 9.0.0.5, then rotate machine-account passwords generated by affected versions.

Evidence timeline and material changes

Published upstream
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 1, 2026

Sources and claim methodology

Source referencefortra.com

Upstream source description

Fortra BoKS Server Agent contains a predictable password generation vulnerability in the adjoin utility. Machine-account passwords generated during Active Directory join or password renewal operations may have significantly less entropy than intended, making them more susceptible to prediction by an attacker who can estimate when the password was generated.

Quoted source text, attributed separately from HOL analysis.