Cisco HyperFlex Software Static Signing Key Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
A vulnerability in Cisco HyperFlex Software could allow an unauthenticated, remote attacker to generate valid, signed session tokens. The vulnerability is due to a static signing key that is present in all Cisco HyperFlex systems. An attacker could exploit this vulnerability by accessing the static signing key from one HyperFlex system and using it to generate valid, signed session tokens for another HyperFlex system. A successful exploit could allow the attacker to access the HyperFlex Web UI of a system for which they are not authorized.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-15382
- 2026-10-03 Alias added: GHSA-w2hw-vrcc-cpx9
References
More Cisco Hyperflex Hx Data Platform vulnerabilities
- TI-2021-01225 Cisco HyperFlex HX Command Injection Vulnerabilities KEVCVSS 3.1CRITICAL 9.8
- TI-2021-01224 Cisco HyperFlex HX Command Injection Vulnerabilities KEVCVSS 3.1CRITICAL 9.8
- TI-2021-01226 Cisco HyperFlex HX Data Platform File Upload Vulnerability CVSS 3.1MEDIUM 5.3
- TI-2018-10942 Cisco HyperFlex Software Command Injection Vulnerability CVSS 3.0HIGH 8.8
- TI-2019-01578 Cisco HyperFlex Software Cross-Site Request Forgery Vulnerability CVSS 3.1HIGH 8.8
- TI-2019-01290 Cisco HyperFlex Software Unauthenticated Root Access Vulnerability CVSS 3.1HIGH 7.8
Sources
- CVE-2018-15382 · CVE Program
- CVE-2018-15382 · NVD
- FIRST EPSS
- GHSA-w2hw-vrcc-cpx9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences