CVE-2026-94577: A privilege escalation vulnerability exists in the internal Command-Line Interface (CLI) authorization handling mechanism of Brocade Fabric
Noroxi assessment
Priority: Monitor (action score 29/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.10% (FIRST EPSS).
- Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
- Fixed version: Brocade Fabric OS 9.2.2d.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Brocade Fabric OS 9.2.2d or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
A privilege escalation vulnerability exists in the internal Command-Line Interface (CLI) authorization handling mechanism of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. An authenticated user or local process that can manipulate the process execution environment can bypass Role-Based Access Control (RBAC) validation checks. Successful exploitation allows an attacker to elevate privileges to root
- Published
- Oct 8, 2026
- Updated
- Oct 14, 2026
- EPSS
- 0.1% · 0th percentile
- CWE
- CWE-15
Report tools
Action score
29
Monitor
Low priority for now.
- CVSS
- 29 / 40 · 7.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · brocade
- 7.3
- NVD has not scored this yet; the score shown is the CNA’s.
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| broadcom | fabric operating system | cpe:2.3:o:broadcom:fabric_operating_system |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- broadcom fabric operating systembefore 9.2.2d
- broadcom fabric operating system10.0.0 and later · before 10.0.1
Versions reported by the vendor
Affected version ranges reported by the assigning authority (brocade). Independent of NVD's CPE analysis and usually ahead of it.
Brocade Fabric OS
- before 9.2.2daffected · Brocade FabricOS
- 10.0.0 and later · up to and including 10.0.0a1affected · Brocade FabricOS
Same product
broadcom: all recordsOther highest-scoring records for the same primary product.
- CVE-2025-1976Code injection exposure in Fabric OS 9.1.0 through 9.1.1d6KEV64This week
- CVE-2020-15373Multiple buffer overflow vulnerabilities in REST API in Brocade Fabric OS versions v8.2.1 through v8.2.1d, and 8.2.2 versions before v8.2.2c40Plan
- CVE-2023-3454Remote code execution (RCE) vulnerability in Brocade Fabric OS after v9.0 and before v9.2.0 could allow an attacker to execute arbitrary cod39Monitor
Published before and after this one in the same product
- ← EarlierCVE-2026-87677Oct 8, 2026 · An OS command injection vulnerability exists in the account management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 thro21Monitor
- ← EarlierCVE-2026-94576Oct 8, 2026 · An authentication logic and privilege escalation vulnerability exists in the account management interface of Brocade Fabric OS versions befo23Monitor
- Later →CVE-2026-94579Oct 8, 2026 · An OS command injection vulnerability exists in the PAM (Pluggable Authentication Module) session cleanup routines during SSH session termin22Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Brocade Fabric OS | 9.2.2d | Vendor (CNA) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- Fix recordedsame day
- TodayOct 30, 2026+22 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-26-1270 · Oct 8, 2026(Brocade Çoklu Ürün Güvenlik Bildirimi)
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- Integrity
- Availability
- Attack vector
- Local
- Attack complexity
- High
- Privileges required
- Low
- User interaction
- None
- Scope
- X
Weakness class (CWE)
CWE-15 · External Control of System or Configuration SettingCVSS vector
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
- XML Schema PoisoningCAPEC-146likelihood: Low · High
- Configuration/Environment ManipulationCAPEC-176Medium
- Manipulate Registry InformationCAPEC-203Medium
- Modification of Registry Run KeysCAPEC-270likelihood: Medium · Medium
- Schema PoisoningCAPEC-271likelihood: Low · High
- Replace Winlogon Helper DLLCAPEC-579
- Target Programs with Elevated PrivilegesCAPEC-69likelihood: High · Very High
ATT&CK techniques
- Modify RegistryT1112
- Boot or Logon Autostart Execution: Registry Run Keys / Start FolderT1547.001
- Boot or Logon Autostart Execution: Winlogon helper DLLT1547.004
- Boot or Logon Autostart Execution: ActiveT1547.014
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
- Plist ModificationT1647
Change log
- SSVC exploitation— → none
- Exploit maturity— → none
- Fix✗ → ✓
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References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.