CASCACascade Atlas

Evidence dossier

CVE-2025-1976

Code injection exposure in Fabric OS 9.1.0 through 9.1.1d6

58.5–78.2Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Brocade Fabric OS versions starting with 9.1.0 have root access removed, however, a local user with admin privilege can potentially execute arbitrary code with full root privileges on Fabric OS versions 9.1.0 through 9.1.1d6.

State
PUBLISHED
Published
Apr 24, 2025
Updated
Feb 26, 2026
Evidence coverage
72%
CISA KEVCatalog member

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

FIRST EPSS0.75%

2026-07-18 · v2026.06.15 · percentile 50.9%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

brocadeoriginal assertion
container

Code injection exposure in Fabric OS 9.1.0 through 9.1.1d6

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CISA KEVoriginal assertion
observed_exploitation

Broadcom Brocade Fabric OS Code Injection Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.007510000000; percentile 0.508710000000

Applicability

Cited product scope

Trace impact →
BrocadeFabric OS
[{"status": "affected", "version": "Fabric OS versions 9.1.0 through 9.1.1d6"}]unknown
Unknown vendorUnknown product
cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*; start including 9.1.0; end excluding 9.1.1d7supported

Assessments

CVSS by origin

6.7
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.6
sirt@brocade.comCVSS 4.0 · role SecondaryCVSS:4.0/AV:A/AC:L/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
8.6
brocadeCVSS 4.0 · role unknownCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.